List of Invited Talks by Group Members and Collaborators

– Invited presentation at the AMF-13 & AMEC-13 conference (Asian Meetings on Ferroelectricity and Electroceramics); Macao, China,12-16 November 2023; “Structural phase transition and microstructure study in ferroelectric Pb(Zr,Ti)O3,” Xian-Kui Wei, Sergei Prokhorenko, Bi-Xia Wang, Zenghui Liu, Yu-Juan Xie, Yousra Nahas, Krystian Roleder, Laurent Bellaiche, Zuo-Guang Ye, and Rafal E. Dunin-Borkowski.

– Invited (virtual) colloquium at Westlake University; Hangzhou, China; April 27, 2023; “Designing New Materials and Phenomena From Ab-Initio Approaches,”   Laurent Bellaiche.

– Invited presentation at IMF-2023 (the 15th International Meeting on ferroelectricity); Tel-Aviv, Israel, March 26-30, 2023; “Ultrafast neuromorphic dynamics using hidden phases in the prototype of relaxor ferroelectric,” Sergey Prosandeev, Sergei Prokhorenko, Yousra Nahas, Julie Grollier, Diyar Talbayev, Brahim Dkhil and Laurent Bellaiche.

– Invited presentation at IMF-2023 (the 15th International Meeting on ferroelectricity); Tel-Aviv, Israel, March 26-30, 2023; “Optical control of polarization in ferroelectric,” Charles Paillard, Ran Xu, Francesco Delodovici, Carmel Dansou, Peng Chen, Hongjian Zhao, Jorge Iniguez, and Laurent Bellaiche.

– Invited Tutorial at IMF-2023 (the 15th International Meeting on ferroelectricity); Tel-Aviv, Israel, March 26-30, 2023; “Theory and modeling: Effective Hamiltonian approaches,” Laurent Bellaiche.

– Presentation at the Fundamental Physics of Ferroelectrics 2023; Golden, CO; February 5-8, 2023; “Ferroelectric phase transitions in epitaxial antiferroelectric PbZrO3 thin films,” Pauline Dufour.

– Presentation at the Fundamental Physics of Ferroelectrics 2023; Golden, CO; February 5-8, 2023; “Nonlinear phonon Hall effects in ferroelectrics: its existence and non-volatile electrical control,” Wei Luo.

– Presentation at the Fundamental Physics of Ferroelectrics 2023; Golden, CO; February 5-8, 2023; “Motion and teleportation of polar bubbles,” Sergei Prokhorenko.

– Presentation at the Fundamental Physics of Ferroelectrics 2023; Golden, CO; February 5-8, 2023; “Dynamics of polar vortex crystal formation in ultra-thin ferroelectrics,” Suyash Rijal.

– Presentation at the Fundamental Physics of Ferroelectrics 2023; Golden, CO; February 5-8, 2023; “THz-Induced Activation of Hidden States in Rare-Earth-Doped BiFeO3 Solid Solutions,” Sergey Prosandeev.

– Presentation at the Fundamental Physics of Ferroelectrics 2023; Golden, CO; February 5-8, 2023; “Light-Assisted Creation and Control of Novel Ferroelectric Phases,” Peng Chen.

– Invited presentation at the Monark biweekly meeting; online, November 30, 2022; “Phase evolution of CsPbI3 thin films with temperature, strain, and thickness,” Sukriti Mantri.

– Invited presentation at the Monark biweekly meeting; online, November 16, 2022; “Creation and control of dynamical polar skyrmion via optical vortex beam in quasi-2D ferroelectric films,” Lingyuan Gao.

– Invited presentation at Ferroelectures; online, November 10, 2022; “Electronic spin splittings in piezoelectric, ferroelectric, and magnetic semiconductors,” Hongjian Zhao.

– Invited presentation at the Fall 2022 Program Review of Department of Defense Vannevar Bush Faculty Fellowship (VBFF) at Stony Brook, NY; September 27-29, 2022; “Topology of ferroic matter,” Laurent Bellaiche.

– Invited (virtual) colloquium at NIST, MD; September 14, 2022; “Designing New Materials and Phenomena From Ab-Initio Approaches,” Laurent Bellaiche.

– Invited presentation at the Inaugural Department of Defense 6.1 Basic Research Conference; Washington, DC (hybrid conference); September 06-09, 2022; “Ultrafast Activation of Hidden Phases in Ferroelectrics and Related Materials,” Laurent Bellaiche.

– Invited presentation at the MURI-ETHOS annual program review meeting; Berkeley, CA (hybrid conference); August 09, 2022; “Contributions from first principles,” Laurent Bellaiche.

– Invited Presentation at the 2022 MRS Fall Meeting; Boston, MA, November 27-December 02, 2022; “Direct imaging of topological phase transitions in polar skyrmions, merons, and anti-merons in oxide heterostructures,” Yu-Tsun Shao, Sergei Prokhorenko, Yousra Nahas, Sujit Das, Zijian Hong, Ruijuan Xu, Swathi Chandrika, Fernando Gomez-Ortiz, Pablo Garcia-Fernandez, Long-Qing Chen, Harold Y. Hwang, Javier Junquera, Lane W. Martin, Laurent Bellaiche, Ramamoorthy Ramesh, David A. Muller.

– Invited Presentation at the 2022 MRS Spring Meeting; Honolulu, HI, May 8-13, 2022; “Deterministic control of ferroelectric polarization by ultrafast laser pulses,” Laurent Bellaiche, Peng Chen, Charles Paillard, Hong Jian Zhao and Jorge Íñiguez.

– Invited presentation at the DARPA Topological excitations in electronics (TEE) meeting; Virtual conference April 26, 2022; “Topological functionalization of ferroelectrics and multiferroics,” Laurent Bellaiche.

– Invited colloquium for the (virtual) ARA Project Scope, April 20, 2022; “Designing New Materials and Phenomena,” Laurent Bellaiche.

– Invited colloquium at Los Alamos National Laboratory, Los Alamos, NM, March 22, 2022; “Magnetic Topological Orders from Ab-Initio Simulations,” Laurent Bellaiche.

– Invited Presentation at the 2022 APS March Meeting; Chicago, IL, March 08-13, 2022; “Exploring non-collinear magnetic textures in multiferroics,” Bertrand Dupé.

– Invited Presentation at the 2022 APS March Meeting; Chicago, IL, March 08-13, 2022; “New Types of Kitaev Magnets with 3d Metal and Heavy Ligands,” Changsong Xu.

– Presentation at the Fundamental Physics of Ferroelectrics 2022, February 6-9, 2022; “Fast Activation of Hidden Phases in Ferroelectrics, Relaxors and AntiFerroelectrics,” Laurent Bellaiche.

– Presentation at the Fundamental Physics of Ferroelectrics 2022, February 6-9, 2022; “Deterministic control of ferroelectric polarization by ultrafast laser pulses,” Peng Chen.

– Invited presentation at the Fundamental Physics of Ferroelectrics 2022, February 6-9, 2022; “Multifunctionality in AlN/ScN superlattices: Large piezoelectric, electro-optic, elasto-optic effects and ultrahigh energy storage,” Zhijun Jiang.

– Invited presentation at the (virtual) Electronic Materials and Applications 2022 (EMA 2022) conference, January 19- January 21, 2022; “Deterministic control of ferroelectric polarization by ultrafast laser pulses,” Peng Chen.

– Presentation at the 2022-ISAF conference; Tours, France, June 27- July 01, 2022; “Photo-induced effects in ferroelectrics and multiferroics: opportunities and challenges,” Charles Paillard, Shenglan Hao, Brahim Dkhil, Zhijun Jiang, Hongjun Xiang, and Laurent Bellaiche.

– JLU global (virtual) lecture; Jilin University, China, January 10, 2022; “Model Hamiltonians for Ferroelectrics, Antiferroelectrics, and Multiferroics,” Laurent Bellaiche.

– Invited presentation at the (virtual) PACRIM14 conference; Vancouver, Canada, December 13- 16, 2021; December 6-8, 2021; “Domain-wall-induced Electromagnons in Multiferroics,” Laurent Bellaiche, S. Omid Sayedaghaee, Charles Paillard, Sergey Prosandeev and Bin Xu.

– Invited presentation at Ferroelectures; online, December 09, 2021; “Hidden phases with neuromorphic responses and highly enhanced piezoelectricity in relaxor and antiferroelectric prototypes,” Sergey Prosandeev.

– Invited presentation at the (virtual) 2021 MRS Fall Meeting; Boston, MA, December 6-8, 2021; “Domain-wall-induced Electromagnons in Multiferroics,” Laurent Bellaiche, S. Omid Sayedaghaee, Charles Paillard, Sergey Prosandeev, and Bin Xu.

– Invited presentation at the Army Research Office Physical Properties of Materials Program Review; Part #3 Photonic Materials; Virtual conference November 05, 2021; “Optimizing and Discovering Light-Matter Phenomena in Dipolar Materials,” Laurent Bellaiche.

– Invited presentation at the DARPA Topological excitations in electronics (TEE) meeting; Virtual conference November 03, 2021; “Topological functionalization of ferroelectrics and multiferroics,” Laurent Bellaiche.

– Invited presentation at Ferroelectures; online, September 09, 2021; “Controlling ferroelectric structure with light,” Charles Paillard.

– Invited presentation at the 12th International Conference on High-Performance Ceramics (CICC-12); Suzhou, China, November 14-18, 2021, May 31- June 04, 2021; “Noncollinear magnetism and ferroelectricity in perovskites,” Hong Jian Zhao.

– Invited discussion at the 2021 Virtual Defense Established Program to Stimulate Competitive Research (DEPSCoR) Day, June 23, 2021; “Session 4: Previously-funded DoD Researchers,” Laurent Bellaiche.

– Invited (online) seminar at the FLAME-inars (at TU Darmstadt, Germany), June 17, 2021; “Bilinear Coupling and Order-Disorder Transition in the Prototypical Antiferroelectric PbZrO3,” Bin Xu.

– Invited presentation at DFT and models 2021; Virtual conference, June 07- June 16, 2021; “Model Hamiltonians for Ferroelectrics, Antiferroelectrics and Multiferroics,” Laurent Bellaiche.

– Invited presentation at the 10th ABINIT International Developer Workshop; Virtual conference, May 31- June 04, 2021; “Constrained DFT to mimick thermalized photo-excited carriers,” Charles Paillard.

– Invited Colloquium at Department of Physics of Technical University of Denmark; Virtual conference, April 12, 2021; “Dzyaloshinskii-Moriya interaction in ferroelectics and antiferroelectrics,” Laurent Bellaiche.

– Invited presentation at the 32nd Annual Workshop 2021 Fundamental Physics of Ferroelectrics, February 1-3, 2021; “Inverse Transition of Labyrinthine Domain Patterns in Ferroelectric Thin Films,” Yousra Nahas.

– Invited presentation at the 32nd Annual Workshop 2021 Fundamental Physics of Ferroelectrics, February 1-3, 2021; “Ultrafast Neuromorphic Dynamics Using Hidden Phases in the Prototype of Relaxor Ferroelectrics,” Laurent Bellaiche.

– Invited presentation at the DARPA Topological excitations in electronics (TEE) meeting; Virtual conference January 27-29, 2021; “Topological functionalization of ferroelectrics and multiferroics,” Laurent Bellaiche.

– Invited presentation at the (virtual) Electronic Materials and Applications 2021 (EMA 2021) conference, January 19- January 22, 2021; “Higgs-Bosons Modes, Ultrafast Neuromorphic Dynamics and Hidden Phases in Relaxor Ferroelectrics,” Laurent Bellaiche.

– Invited Colloquium at CNRS/Thales and Université Paris-Saclay; Virtual conference January 08, 2021; “Dzyaloshinskii-Moriya interaction in ferroelectircs and antiferroelectrics,” Laurent Bellaiche.

– Invited presentation at the DARPA Topological excitations in electronics (TEE) meeting; Virtual conference July 29-30, 2020; “Topological functionalization of ferroelectrics and multiferroics,” Laurent Bellaiche.

– Presentation at the 2020 Workshop on Fundamental Physics of Ferroelectrics and related materials; Silver Spring, MD, January 26-January 29, 2020; “Dynamical strain-induced magnetoelectric response in BiFeO3,” Omid S. Sayedaghaee.

– Presentation at the 2020 Workshop on Fundamental Physics of Ferroelectrics and related materials; Silver Spring, MD, January 26-January 29, 2020; “Berezinskii-Kosterlitz-Thouless phase in 2D ferroelectrics,” Changsong Xu.

– Presentation at the 2020 Workshop on Fundamental Physics of Ferroelectrics and related materials; Silver Spring, MD, January 26-January 29, 2020; “Nature of polar modes in PMN relaxor ferroelectric,” Sergey Prosandeev.

– Invited presentation at the DARPA Topological excitations in electronics (TEE) meeting; Charlottesville, VA, January 22-23, 2020;  “Topological functionalization of ferroelectrics and multiferroics,” L. Bellaiche.

– Presentation at the 2020 Workshop on Fundamental Physics of Ferroelectrics and related materials; Silver Spring, MD, January 26-January 29, 2020; “Dynamical strain-induced magnetoelectric response in BiFeO3,” Omid S. Sayedaghaee.

– Presentation at the 2020 Workshop on Fundamental Physics of Ferroelectrics and related materials; Silver Spring, MD, January 26-January 29, 2020; “Berezinskii-Kosterlitz-Thouless phase in 2D ferroelectrics,” C. Xu.

– Presentation at the 2020 Workshop on Fundamental Physics of Ferroelectrics and related materials; Silver Spring, MD, January 26-January 29, 2020; “Nature of polar modes in PMN relaxor ferroelectric,” S. Prosandeev.

– Invited presentation at the DARPA meeting on DSO Futures; San Diego, CA, November 18, 2019; “Unsupervised learning, neuromorphic computing and related topics,” L. Bellaiche.

– Colloquium at CEA-DAM; Bruy\`eres-le-Ch\^atel, June 20, 2019; “Atomistic simulations of relaxor ferroelectrics,” A.R. Akbarzadeh, A. Al-Barakaty, L. Bellaiche, A. Bokov, B. Dkhil, G. Geneste, J. Hlinka, J.M. Kiat, I. Kornev, Y. Nahas, P. Ondrejkovic, J. Petzelt, S. Prokhorenko, S. Prosandeev, E. Walter, D. Wang and Z.-G. Ye.

– Invited presentation at the 2019 MRS Fall Meeting; Boston, MA, December 1-6, 2019; “Electric Field-Controlled Magnetism in (Bi,R)FeO3 Solid Solutions,” Xiang Ming Chen, Jing Chen, Xin Xin Shi, Bin Xu, Xiao Qiang Liu, Ting Ting Gao and Laurent Bellaiche.

– Invited Presentation at PACRIM13; Okinawa, Japan, October 27- November 01, 2019; “Electric-Field Control of Magnetization, Jahn-Teller Distortion, and Orbital Ordering in Ferroelectric Ferromagnets,” Lan Chen, Changsong Xu, Hao Tian, Hongjun Xiang, Jorge Iniguez, Yurong Yang and L. Bellaiche.

– Invited Presentation at PACRIM13; Okinawa, Japan, October 27- November 01, 2019; “Dynamical Properties of Multiferroics,” L. Bellaiche, S. Omid Sayedaghaee, Charles Paillard, Bin Xu and Sergey Prosandeev.

– Invited presentation at the DARPA Topological excitations in electronics (TEE) meeting; Arlington, VA, June 05-06, 2019; “Topological functionalization of ferroelectrics and multiferroics,” L. Bellaiche.

– Invited presentation at the ONR Acoustic Transduction Materials and Devices Program Review; Arlington, VA, April 02-04, 2019;  “Understanding and Designing Complex ferroelectrics from First Principles,” L. Bellaiche.

– Invited presentation at the DARPA Topological excitations in electronics (TEE) meeting; New York, NY, February 04-06, 2019; “Topological functionalization of ferroelectrics and multiferroics,” L. Bellaiche.

– Presentation at the 2019 Workshop on Fundamental Physics of Ferroelectrics and related materials; Tampa Bay, FL., January 27- January 30, 2019; “Electric-field control of magnetization, Jahn-Teller distortion and orbital ordering in ferroelectric ferromagnets,” Yurong Yang, Lan Chen, Changsong Xu, Hao Tian, Hongjun Xiang, Jorge Iniguez and L. Bellaiche.

– Presentation at the 2019 Workshop on Fundamental Physicsof Ferroelectrics and related materials; Tampa Bay, FL., January 27- January 30, 2019; “Optical functionalities of ferroelectric and multiferroic materials,” L. Bellaiche, Jorge Iniguez, Zhijun Jiang, Charles Paillard, Sergei Prokhorenko and Hongjun Xiang.

– Presentation at the 2019 Workshop on Fundamental Physics of Ferroelectrics and related materials; Tampa Bay, FL., January 27- January 30, 2019; “Photo-induced strain effect in BiFeO$_3$ multiferroic,” Brahim Dkhil.

– Invited presentation at the FLEET 2018 Annual workshop; Pullman Magenta Shores, Australia, December 03-05, 2018; “Ferroelectric and BKT transitions in two-dimensional systems,”  L. Bellaiche.

–  Colloquium at at the University of Arkansas (Physics department); Fayetteville, AR, November 09, 2018;
“Do quantum spin liquids exist?” Changsong Xu.

– Invited presentation at the DARPA Materials For Transduction (MATRIX) Review meeting;  Arlington, VA, November 07-08, 2018;
“First-Principles-Based Large-Scale Modeling of Transductional Materials,”  L. Bellaiche.

– Invited presentation at the 2018 Theoretical Condensed matter Physics Principal Investigator’s Meeting, Materials Sciences and Engineering Division, Office of Basic Energy Science, U.S. Department of Energy; Gaithersburg, Maryland, August 14-16, 2018;
“Designing lead-free antiferroelectrics for energy storage,”  B. Xu, J. Iniguez and L. Bellaiche.

– Invited presentation at the DARPA Topological excitations in electronics (TEE)  meeting; Columbus, OH, August 07-09, 2018; “Topological functionalization of ferroelectrics and multiferroics,”  L. Bellaiche.

–  Invited presentation at the International Workshop on Topological Structures in Ferroic Materials 2018, Natal, Brazil, June 12-16, 2018;
“Displacement Current in Domain Walls of Bismuth Ferrite,” S. Prosandeev.

– Invited presentation at the DARPA Materials For Transduction (MATRIX) Review meeting;  Boulder, CO, June 12-14, 2018; ``First-Principles-Based Large-Scale Modeling of Transductional Materials,’‘  L. Bellaiche.

–  Colloquium at the Air Force Research Laboratory; Dayton, Ohio, May 31, 2018;
“Switching magnetic ordering by an electric field in multiferroics,” S. Bhattacharjee, X.M. Chen, J. I ñiguez, A. Mao, D. Rahmedov, W. Ren, D. Wang, B. Xu, Y. Yang, H. Zhao and  L. Bellaiche.

–  Invited presentation at the Fall 2018 E-MRS conference; Warsaw, Poland, eptember 17-20, 2018;
“First-principles insights into neutral domain walls and their conductivity,” Charles Paillard, Grégory Geneste, Sergey Prosandeev, Raymond Walter, Yurong Yang, Brahim Dkhil and Laurent Bellaiche.

–  Colloquium at University of Pennsylvania; Philadelphia, PA, March 20, 2018;
“Topological Defects in Ferroelectrics and Multiferroics and Atomistic simulations of relaxor ferroelectrics,’‘  L. Bellaiche.

–  Invited presentation at the DARPA Topological excitations in electronics (TEE)  Kick-off meeting; Arlington, VA, February 27-28, 2018; “Topological functionalization of ferroelectrics and multiferroics,”  L. Bellaiche.

–  Invited Lecture at the UNSW Summer School on Ferroelectrics; Sydney, Australia; February 5-9, 2018;
“Ferroelectric vortices’‘, L. Bellaiche, A. Akbarzadeh, H. Fu, I. Kornev, I. Naumov, I. Ponomareva, S. Prosandeev, W. Ren, D.Sichuga and D. Wang

–  Invited Lecture at at the UNSW Summer School on Ferroelectrics; Sydney, Australia; February 5-9, 2018;
“Theory of Ferroelectricity: Effective Hamiltonian approaches”, L. Bellaiche, A.R. Akbarzadeh, I.Kornev, I. Ponomareva, S. Prosandeev and D. Vanderbilt

– Presentation at the 2018 Workshop on Fundamental Physics of Ferroelectrics; Washington, D.C., January 28- January 31, 2018;
“Atomistic simulations of dipolar dynamics and phase transitions in classical relaxor PbMg_1/3Nb_2/3O₃,” Alexei Bokov.

–  Presentation at the 2018 Workshop on Fundamental Physics of Ferroelectrics; Washington, D.C., January 28- January 31, 2018;
“Electrocaloric coefficient in PbMg_1/3Nb_2/3O₃ relaxor ferroelectrics from atomistic simulations,” Zhijun Jiang.

– Presentation at the 2018 Workshop on Fundamental Physics of Ferroelectrics; Washington, D.C., January 28- January 31, 2018;
“Ferroelectric features at the service of solid state coolers,” Brahim Dkhil.

– Presentation at the 2018 Workshop on Fundamental Physics of Ferroelectrics; Washington, D.C., January 28- January 31, 2018;
“First-principles prediction of multiferroic hexagonal P63cm and hexagonal-likeP1 phases in epitaxial (111) BiFeO₃ films,” Changsong Xu.

–  Presentation at the 2018 Workshop on Fundamental Physics of Ferroelectrics; Washington, D.C., January 28- January 31, 2018;
“Spin cycloids in multiferroic BiFeO₃ thin films,” Bin Xu.

– Presentation at the 2018 Workshop on Fundamental Physics of Ferroelectrics; Washington, D.C., January 28- January 31, 2018;
“Improper ferroelectricity at antiferromagnetic domain walls of perovskite oxides,” Yali Yang.

– Presentation at the 2018 Workshop on Fundamental Physics of Ferroelectrics; Washington, D.C., January 28- January 31, 2018;
“Novel insulator-to-insulator transition in charged domains of hybrid perovskites,” Yurong Yang.

– Colloquium at Monash University; Melbourne (Australia), February 05, 2018; “Topological Defects in Ferroelectrics and Multiferroics,” L. Bellaiche.

– Invited presentation at the “Ferroelectric Domain Walls” workshop; Tel Aviv, Israel, November 13-15, 2017; “Unusual phenomena induced by time-dependent toroidal moments,” Sergey Prosandeev and L. Bellaiche.

– Colloquium at at the University of Arkansas (Physics department); Fayetteville (AR), October 20, 2017; “Novel Applications of Ferroelectrics: Towards Artificial Synapses and Energy Storage,” Bin Xu.

– Colloquium at at the University of Arkansas (Physics department); Fayetteville (AR), September 29, 2017; “Cross coupling and tuning of properties in multiferroics,” Yurong Yang.

– Invited presentation at IMF-2017; San Antonio, Texas, September 04-08, 2017; “Some guidelines for improving caloric responses using ferroelectrics,” Brahim Dkhil. 

– Invited presentation at IMF-2017; San Antonio, Texas, September 04-08, 2017; “Atomistic simulations of relaxor ferroelectrics,” A.R. Akbarzadeh, A. Al-Barakaty, Laurent Bellaiche,  A. Bokov, B. Dkhil, G. Geneste, J. Hlinka, J.M. Kiat, I. Kornev, Y. Nahas, P. Ondrejkovic, J. Petzelt, S. Prokhorenko, S. Prosandeev, E. Walter, D. Wang and Z.-G. Ye.

– Colloquium at LIST; Belval, Luxembourg, June 29, 2017; “Switching magnetic ordering by an electric field in multiferroics,” S. Bhattacharjee, X.M. Chen, J. Iniguez, A. Mao, D. Rahmedov, W. Ren, D. Wang, B. Xu, Y. Yang, H. Zhao and  L. Bellaiche. 

– Invited presentation at LIST; Belval, Luxembourg, June 29, 2017; “What may be the next big waves in functional materials/oxides?” L. Bellaiche.

– Colloquium at at the University of Arkansas (Physics department); Fayetteville (AR), March 31, 2017; “Shedding light on (multi)ferroic materials,” Charles Paillard.

– Colloquium at Simon Fraser University; Vancouver, Canada,  March 21, 2017; “Finite-temperature properties of Ba(Zr,Ti)O₃ relaxors from first principles,” A. R. Akbarzadeh, A. Al-Barakaty, A. A. Bokov, B. Dkhil, J. Hlinka, Y. Nahas, S. Prokhorenko, S. Prosandeev, E.J. Walter,  D. Wang, Z.-G. Ye and L. Bellaiche.

– Colloquium at at the University of Arkansas (Physics department); Fayetteville (AR), February 03, 2017; “Emergent Berezinskii-Kosterlitz-Thouless phase in low-dimensional ferroelectrics,” Yousra Nahas.

– Presentation at the 2017 Workshop on Fundamental Physics of Ferroelectrics; Williamsburg, VA, January 29- February 01, 2017; “Pressure-induced multiferroics via pseudo Jahn-Teller effects and novel couplings,” Changsong Xu Yang Li, Bin Xu, Jorge Iniguez, Wenhui Duan and Laurent Bellaiche.

– Presentation at the 2017 Workshop on Fundamental Physics of Ferroelectrics; Williamsburg, VA, January 29- February 01, 2017; “Effects of atomic short-range order on properties of the Pb(Mg_1/3Nb_2/3O₃ relaxor ferroelectric,” Sergey Prosandeev and L. Bellaiche.

– Presentation at the 2017 Workshop on Fundamental Physics of Ferroelectrics; Williamsburg, VA, January 29- February 01, 2017; “Intrinsic polarization switching mechanisms in BiFeO₃,” Bin Xu, Vincent Garcia, Stéphane Fusil, Manuel Bibes, and L. Bellaiche.

– Presentation at the 2017 Workshop on Fundamental Physics of Ferroelectrics; Williamsburg, VA, January 29- February 01, 2017; “The effect of time-dependent magnetic field on polarization in multiferroics,” S. Omid Sayedaghaee, Sergey Prosandeev, Bin Xu, Laurent Bellaiche.

– Invited Presentation at the 2017 Workshop on Fundamental Physics of Ferroelectrics; Williamsburg, VA, January 29- February 01, 2017; “Origin of Distinct Pressure Effects on Octahedral Tilting in Perovskite Oxides,” H. J. Xiang, Mael Guennou, Jorge Iniguez, Jens Kreisel and Laurent Bellaiche.

– Presentation at the 2017 Workshop on Fundamental Physics of Ferroelectrics; Williamsburg, VA, January 29- February 01, 2017; “Effect of Trilinear Couplings on Dynamical Properties of Perovskites,” Kinnary Patel, Sergey Prosandeev, and L. Bellaiche.

– Invited presentation at the 2017 APS March Meeting; New Orleans, LA, March 13- 17, 2017; “Tuning optical responses with strain in multiferroelectrics and ferroelectrics,” Yurong Yang, D. Sando, Lan Chen, Zhigang Gui, E. Bousquet, C. Carr\’et\’ero, V. Garcia, S. Fusil, X. K. Meng, D. Dolfi, A. Barth\’el\’emy, Ph. Ghosez, M. Bibes and L. Bellaiche.

– Invited presentation at the 2017 APS March Meeting; New Orleans, LA, March 13- 17, 2017; “Photostriction in ferroelectric and multiferroic materials from first principles,” Charles Paillard, Bin Xu, Brahim Dkhil, Gregory Geneste and Laurent Bellaiche.

– Invited presentation at the 8th APCTP Workshop on Multiferroics; Shanghai, China, October 07-10, 2016; “Electric field Control of magnetism in Rare-Earth-Substituted BiFeO₃,’’ B. Xu , D. W. Wang, H. J. Zhao, J. Iñiguez, X. M. Chen and  L. Bellaiche.

– Colloquium at Zhejiang University; Hangzhou, China, July 26, 2016; Control of magnetism by electric field in Rare-Earth-Substituted BiFeO₃,’’ B. Xu , D. W. Wang, H. J. Zhao, J. Iñiguez, X. M. Chen and  L. Bellaiche.

–  Invited presentation at the International Workshop on Topological Structures in Ferroic Materials 2016, Technische Universitat Dresden, Germany, August 16-19, 2016; “Skyrmionic states in ferroelectric nanocomposites and Topological defects in proper ferroelectrics,” S. Prokhorenko, Y. Nahas, Z. Gui, L. Louis, I. Kornev, L. Bellaiche.

– Invited presentation at the International Workshop on Topological Structures in Ferroic Materials 2016, Technische Universitat Dresden, Germany, August 16-19, 2016; “Underlying topological features in ferroelectrics,” Y. Nahas, S. Prokhorenko, I. Kornev, and L. Bellaiche.

– Invited presentation at the 2016 Theoretical Condensed matter Physics Principal Investigator’s Meeting, Materials Sciences and Engineering Division, Office of Basic Energy Science, U.S. Department of Energy; Gaithersburg, Maryland, August 15-17, 2016; “Electric-field control of magnetism in Rare-Earth-Substituted BiFeO₃,” B. Xu, J. Iniguez, H. Zhao, D. Wang, C. Chen and  L. Bellaiche.

– Invited presentation at the Fall 2016 E-MRS conference; Warsaw, Poland, September 19-22, 2016; “Relaxors’ properties from Atomistic Simulations,” Sergey Prosandeev, D. Wang, A R Akbarzadeh, A. Al-Barakaty, B. Dkhil, and L. Bellaiche.

– Invited presentation at the DARPA Materials For Transduction (MATRIX) Review meeting; Pasadena, CA, May 3-05, 2016; “First-Principles-Based Large-Scale Modeling of Transductional Materials,”}
L. Bellaiche.

– Invited Presentation at the 4th International Workshop on Complex Oxides; Porquerolles, France, June 13-17, 2016; “Underlying topological features in ferroelectrics,” Yousra Nahas, Sergei Prokhorenko, Lydie Louis, Zhigang Gui, Igor Kornev and Laurent Bellaiche.

– Invited Presentation at the DPG 80th annual meeting 2016; Regensburg, Germany, March 6-11, 2016; “Skyrmionic states in ferroelectric nanocomposites,” Yousra Nahas, Sergei Prokhorenko, Lydie Louis, Zhigang Gui, Igor Kornev and Laurent Bellaiche.

– Invited Presentation at the SPIE Spintronics IX conference; San Diego, CA, August 28 –  September 01, 2016;“Relativistic interaction Hamiltonian coupling the angular momentum of light and the electron spin,” Ritwik Mondal, Marco Berritta, Charles Paillard, Surendra Singh, Brahim Dkhil, Peter M. Oppeneer and L. Bellaiche.

– Presentation at the 2016 Workshop on Fundamental Physics of Ferroelectrics; Washington, D.C., January 31- February 03, 2016;“Underlying topological features in ferroelectrics,” Y. Nahas, S. Prokhorenko, I. Kornev and L. Bellaiche.

– Presentation at the 2016 Workshop on Fundamental Physics of Ferroelectrics; Washington, D.C., January 31- February 03, 2016; “Atomistic Simulations of Complex Problems in Ferroelectrics,” Al-Barakaty, L. Bellaiche, A. A. Bokov, B. Dkhil, Z. Gui, J. Hlinka, Yousra Nahas, Sergei Prokhorenko, S. Prosandeev, D. Wang, Lin-Wang Wang, and Z.-G. Ye.

– Presentation at the 2016 Workshop on Fundamental Physics of Ferroelectrics; Washington, D.C., January 31- February 03, 2016; “Antiferroelectric Rare-Earth-Substituted BiFeO₃,” Bin Xu, J. Iñiguez and L. Bellaiche.

 

– Presentation at the 2016 Workshop on Fundamental Physics of Ferroelectrics; Washington, D.C., January 31- February 03, 2016; “Towards improved caloric responses using ferroelectrics,’‘ Y. Liu, Z.G. Luo, W.P. Geng, L.C. Phillips, M. Sanlialp, I.C. Infante, P.E. Janolin, X.J. Lou, X.B. Ren, A.Q. Jiang, V.V. Shvartsman, D.C. Lupascu, X.J. meng, R. Mattana, M. Bibes, A. Barthélémy, L. Bellaiche, J.F. Scott and B. Dkhil.

– Presentation at the 2016 Workshop on Fundamental Physics of Ferroelectrics; Washington, D.C., January 31- February 03, 2016; “Learning through ferroelectric domain dynamics in solid-state synapses,” V. Garcia, S. Boyn, G. Lecerf, B. Xu, S. Fusil, S. Girod, C. Carr\’et\’ero, L. Bellaiche, S. Saighi, M. Bibes, A. Barthélémy.

– Colloquium at Zhejiang University; Hangzhou, China, January 08, 2016; “Novel forms of energy in ferroelectric, antiferroelectric, antiferrodistortive, magnetic and multiferroic materials,”  L. Bellaiche, S. Bhattacharjee, X.M. Chen, B. Dkhil, H.Fu, Z. Gui, J. Iñiguez, I. Kornev, A. Mao, C. Paillard,  A. Raeliarijaona, W. Ren, S. Singh, M. Viret, R. Walter, D. Wang, B. Xu, Y. Yang and H. Zhao

– Colloquium at Shanghai University; Shanghai, China, January 07, 2016; “Novel forms of energy in ferroelectric, antiferroelectric, antiferrodistortive, magnetic and multiferroic materials,” L. Bellaiche, S. Bhattacharjee, X.M. Chen, B. Dkhil, H.Fu, Z. Gui, J. Iñiguez, I. Kornev, A. Mao, C. Paillard,  A. Raeliarijaona, W. Ren, S. Singh, M. Viret, R. Walter, D. Wang, B. Xu, Y. Yang and H. Zhao

–  Colloquium at Nanjing University; Nanjing, China, January 06, 2016; “Switching magnetic ordering by an electric field in multiferroics,” S. Bhattacharjee, X.M. Chen, J. Iñiguez, A. Mao, D. Rahmedov, W. Ren, D. Wang, B. Xu, Y. Yang, H. Zhao and  L. Bellaiche.

– Colloquium at Fudan University; Shanghai, China, January 04, 2016; “Switching magnetic ordering by an electric field in multiferroics,” S. Bhattacharjee, X.M. Chen, J. Iñiguez, A. Mao, D. Rahmedov, W. Ren, D. Wang, B. Xu, Y. Yang, H. Zhao and  L. Bellaiche.

– Invited presentation at the Fall 2015 E-MRS conference; Warsaw, Poland, September 15-18, 2015; “Switching magnetic ordering by an electric field in multiferroics,” S. Bhattacharjee, X.M. Chen, J Íñiguez, A. Mao, D. Rahmedov, W. Ren, D. Wang, B. Xu, Y. Yang, H. Zhao and L. Bellaiche.

– Invited presentation at the International Workshop on Topological Structures in Ferroic Materials; Sydney, Australia, May 19-21, 2015; “Topological Defects in Ferroelectrics and Multiferroics,” L. Bellaiche.

– Presentation at the 2015 Workshop on Fundamental Physics of Ferroelectrics and Related Materials; Knoxville, TN, January 25- January 28, 2015;  “Room-temperature multiferroic superlattices,”  Y. Yang

– Presentation at the 2015 Workshop on Fundamental Physics of Ferroelectrics and Related Materials; Knoxville, TN, January 25- January 28, 2015;  “Dynamical magnetoelectric effects associated with ferroelectric domain walls,”  S. Prosandeev

– Presentation at the 2015 Workshop on Fundamental Physics of Ferroelectrics and Related Materials; Knoxville, TN, January 25- January 28, 2015;  “Novel forms of energy in ferroelectric, antiferroelectric, antiferrodistortive, magnetic and multiferroic materials,”  L. Bellaiche

– Presentation at the 2015 Workshop on Fundamental Physics of Ferroelectrics and Related Materials; Knoxville, TN, January 25- January 28, 2015;  “Fano resonance in lead-free relaxor Ba(Zr,Ti)O₃,”  D. Wang

– Presentation at the 2015 Workshop on Fundamental Physics of Ferroelectrics and Related Materials; Knoxville, TN, January 25- January 28, 2015;  “Prediction of a stable post-post-perovskite structure from first principles,’‘  C. Xu

– Presentation at the 2015 Workshop on Fundamental Physics of Ferroelectrics and Related Materials; Knoxville, TN, January 25- January 28, 2015;  “Strain induced and its consequences in multiferroics,”  B. Dkhil

– Invited presentation at the Electronic Materials and Applications 2015 conference; Orlando, Florida, January 21- January 23, 2015;  “First-principles-Based Investigation of physical properties of BST Nanodot,” Saad Bin-Omran.

– Invited presentation at the Electronic Materials and Applications 2015 conference; Orlando, Florida, January 21- January 23, 2014;  “Finite-temperature Properties of Rare-Earth-Substituted BiFeO₃ Multiferroic Solid Solutions,” Bin Xu.

– Invited presentation at the AMF-AMEC 2014 conference; Shanghai, China, October 26- 30, 2014;  “Strain Tuning of the Magnetic Arrangements in Multiferroics,” Brahim Dkhil.

– Invited presentation at the AMF-AMEC 2014 conference; Shanghai, China, October 26- 30, 2014;  “Elasto- and Electro-Caloric Properties in Ferroelectrics or How to Play with Phase Transition and its Nature,” Brahim Dkhil.

–  Invited presentation at the 2014 Theoretical Condensed matter Physics Principal Investigator’s Meeting, Materials Sciences and Engineering Division, Office of Basic Energy Science, U.S. Department of Energy; Gaithersburg, Maryland, August 11-13, 2014;  “Switching magnetic ordering by an electric field in multiferroics,” Y. Yang, D. Wang, S. Bhattacharjee, J. Iñiguez, A. Mao, D. Rahmedov, and L. Bellaiche.

– Invited presentation at the AMF-AMEC 2014 conference; Shanghai, China, October 26- 30, 2014;  “Multi-mode character of the anti-ferroelectric phase transition of PbZrO₃,” Jorge  Iñiguez, Massimiliano Stengel,  Sergey Prosandeev, and L. Bellaiche.

–  Invited Tutorial at the Ferroelectrics Workshop ’14; Leysin, Switzerland; March 23-26, 2014; “Ferroelectric vortices”, L. Bellaiche, A. Akbarzadeh, H. Fu, I. Kornev, I. Naumov, I. Ponomareva,  S. Prosandeev, W. Ren, D. Sichuga and D. Wang.

–  Invited Tutorial at the Ferroelectrics Workshop ’14; Leysin, Switzerland; March 23-26, 2014; ``Theory of Ferroelectricity: Effective Hamiltonian approaches,” L. Bellaiche, A.R. Akbarzadeh, I.Kornev, I. Ponomareva, S. Prosandeev and D. Vanderbilt.

– Colloquium at  École polytechnique fédérale de Lausanne(EPFL); Lausanne, Switzerland; March 24, 2014; “Finite-temperature properties of Ba(Zr,Ti)O₃ relaxors from first principles,” A.R. Akbarzadeh, A. Al-Barakaty, L. Bellaiche, B. Dkhil, S. Prosandeev,  E. Walter and D. Wang.

– Presentation at the 2014 Workshop on Fundamental Physics of Ferroelectrics and Related Materials; Washington, D.C., January 26- January 29, 2014; “Properties of bulks and films made of Ba(Zr,Ti)O₃ relaxors,”A.R. Akbarzadeh, A. Al-Barakaty, L. Bellaiche, B. Dkhil, S. Prosandeev,  E. Walter and D. Wang.

– Presentation at the 2014 Workshop on Fundamental Physics of Ferroelectrics and Related Materials; Washington, D.C., January 26- January 29, 2014; “Prediction of a novel magnetoelectric switching mechanism in multiferroics,” Y. Yang, J. Iñiguez, A. Mao and L. Bellaiche.

–  Invited presentation at the Electronic Materials and Applications 2014 conference; Orlando, Florida, January 22- January 24, 2014; “Switching magnetic ordering by an electric field in multiferroics,’‘ S. Bhattacharjee, Y. Yang, L. Bellaiche, J. Iñiguez, A. Mao, D. Rahmedov, and D. Wang.

– Invited presentation at the Electronic Materials and Applications 2014 conference; Orlando, Florida, January 22- January 24, 2014; “Peculiar inhomogeneous states in ferroelectrics and multiferroics,” A.R. Akbarzadeh, A. Al-Barakaty, L. Bellaiche, B. Dkhil, G. Geneste, J. Iñiguez, I. Kornev, L. Louis, S. Prosandeev, D. Rahmedov, W. Ren, M. Stengel, E. Walter, D. Wang, X. H. Yan, and Y. Yang.

– Invited Lecture at the International School of Oxide Electronics (ISOE2013); Cargese, France; September 2-14, 2013; “Ferroelectric vortices”, L. Bellaiche, A. Akbarzadeh, H. Fu, I. Kornev, I. Naumov, I. Ponomareva, S. Prosandeev, W. Ren, D.Sichuga and D. Wang.

– Invited Lecture at the International School of Oxide Electronics (ISOE2013); Cargese, France; September 2-14, 2013;“Theory of Ferroelectricity: Effective Hamiltonian approaches”, L. Bellaiche, A.R. Akbarzadeh, I.Kornev, I. Ponomareva, S. Prosandeev and D. Vanderbilt.

– Seminar at the CEA (Saclay, France), July 05, 2013; “Finite-temperature properties of Ba(Zr,Ti)O₃ relaxors from first principles’‘, A. R. Akbarzadeh, S. Prosandeev, Eric J. Walter, A. Al-Barakaty, D. Wang, and L. Bellaiche.

– Material Research Lectures at the California Institute of Technology; Pasadena (CA), May 15, 2013;“Finite-temperature properties of Ba(Zr,Ti)O₃ relaxors from first principles”, A. R. Akbarzadeh, S. Prosandeev, Eric J. Walter, A. Al-Barakaty, D. Wang, and L. Bellaiche.

– Seminar at the University of Arkansas (Chemistry department); Fayetteville (AR), April 15, 2013;“Finite-temperature properties of Ba(Zr,Ti)O₃ relaxors from first principles”, A. R. Akbarzadeh, S. Prosandeev, Eric J. Walter, A. Al-Barakaty, D. Wang, and L. Bellaiche.

– Colloquium at at the University of Oklahoma (Physics department); Norman (OK), February 15, 2013; “Finite-temperature properties of Ba(Zr,Ti)O3 relaxors from first principles,” S. Prosandeev.

–  Invited presentation at the 2013 Workshop on Fundamental Physicsof Ferroelectrics and Related Materials; Ames, Iowa, January 27- January 30, 2013;``Ferroic arrangements and phase transformations in BiFeO3 controlled by strain,” D. Sando, A. Agbelele, D. Rahmedov, J. Liu, P. Rovillain, C. Toulouse, I.C. Infante, A.P. Pyatakov, S. Fusil, E. Jacquet, C. Carrétéro, C. Deranlot, S. Lisenkov, D. Wang, J. M. Le Breton, M. Cazayous, A. Sacuto, J. Juraszek, A.K. Zvezdin, L. Bellaiche, A. Barthélémy, M. Bibes, and  B. Dkhil.

–  Invited presentation at the 2013 Workshop on Fundamental Physics of Ferroelectrics and Related Materials; Ames, Iowa, January 27- January 30, 2013; “Peculiar inhomogeneous states in ferroelectrics and multiferroics,” A.R. Akbarzadeh, A. Al-Barakaty, L. Bellaiche, B. Dkhil, G. Geneste, J. Iñiguez, I. Kornev, L. Louis, S. Prosandeev, D. Rahmedov, W. Ren, M. Stengel, E. Walter, D. Wang, X. H. Yan, and Y. Yang.

– Colloquium at at the University of Arkansas (Physics department); Fayetteville (AR), January 25, 2013; “Finite-temperature properties of Ba(Zr,Ti)O3 relaxors from first principles,” S. Prosandeev.

– Colloquium at Jiaotong University; Xi’an, China,  January 10, 2013; “Finite-temperature properties of Ba(Zr,Ti)O₃ relaxors from first principles,” A. R. Akbarzadeh, S. Prosandeev, Eric J. Walter, A. Al-Barakaty, D. Wang, and L. Bellaiche.

–  Colloquium at the Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India, December 21, 2012; “Geometric frustration in compositionally modulated ferroelectrics,” Narayani Choudhury.

–   Colloquium at the Institute of Physics, Academy of Sciences, Prague, Czech Republic, December 04, 2012;

“Terahertz Dielectric properties of (Ba,Sr)TiO₃ systems from First principles,” J. Weerasinghe.

– Invited presentation at the 2012 International Workshop on Relaxor Ferroelectrics; Schloss Edesheim, Germany, October 07-11, 2012; “Finite-temperature properties of Ba(Zr,Ti)O₃ relaxors from first principles,” A. R. Akbarzadeh, S. Prosandeev, Eric J. Walter, A. Al-Barakaty and L. Bellaiche.

– Undergraduate Research Colloquium at the University of Arkansas (Physics department); Fayetteville (AR), September 14, 2012; “Modeling Ferroelectric Nanocomposites at the University of Arkansas” Raymond Walter.

– Invited presentation at the 2012 Chinese Physical Society; Guangzhou, China, September 21, 2012; “Magnetic order structures and resonances of multiferroic BiFeO₃,” Dawei Wang and L. Bellaiche.

– Colloquium at the University of Arkansas (Physics department); Fayetteville (AR), August 31, 2012; “International Dual/Double Degree Program  at the University of Arkansas: Conception, Implementation and Results,” Lydie Louis.

– Invited presentation at the XXI International Materials Research Congress; Cancun, Mexico, August 12-17, 2012; “Strain control of ferroic orders and their critical temperatures in BiFeO₃,” Daniel Sando, Arsene Agbelele, Christophe Daumont, Jean Juraszek, Maximilien Cazayous, Ingrid Infante, Wei Ren, Sergey Lisenkov, Cecile Carretero, Laurent Bellaiche, Agnes Barthelemy, Manuel Bibes and Brahim Dkhil.

– Invited presentation at the Frontiers in Electronic Materials: Correlation Effects and Memristive Phenomena; Eurogress Aachen, Aachen, Germany, June 17-20, 2012; “Strain Engineering of multiferroic phase transitions and order parameters in BiFeO₃,” Daniel Sando, Arsene Agbelele, Christophe Daumont, Jean Juraszek, Maximilien Cazayous, Ingrid Infante, Wei Ren, Sergey Lisenkov, Cecile Carretero, Laurent Bellaiche, Brahim Dkhil, Agnes Barthelemy and Manuel Bibes.

– Invited presentation at the 2012 APS March Meeting; Boston, MA, February 27- March 02, 2012; “Dynamical couplings in ferroelectrics and multiferroics,” Dawei Wang, L. Bellaiche, J. Hlinka, E. Buxiaderas, J. Iñiguez and J. Weerasinghe.

– Invited presentation at the 2012 Workshop on Fundamental Physics of Ferroelectrics and Related Materials; Argonne, IL, January 29- February 1, 2012; “Novel Properties in BiFeO₃ Films,” S. Prosandeev, Wei Ren, L. Bellaiche, B. Dupe, B. Dkhil, I. Kornev, G. Geneste, Zuhuang Chen, Z. L. Luo, Yajun Qi, C. W. Huang, Lu You, C. Gao, Tom Wu, Junling Wang, P. Yang, T. Sritharan and Lang Chen.

– Invited presentation at the 2012 Workshop on Fundamental Physics of Ferroelectrics and Related Materials; Argonne, IL, January 29- February 1, 2012; “Binding of Electric Vortices with Electric Antivortices in Ferroelectrics and Multiferroics,” L. Bellaiche, B. Dkhil, G. Geneste, I. Kornev, L. Louis, S. Prosandeev and W. Ren.

– Colloquium at the Institute of Physics, Academy of Sciences, Prague, Czech Republic, December 06, 2011; “Ferroelectric Vortices from Atomistic Simulations,” L. Bellaiche, A.R. Akbarzadeh, H. Fu, I. Kornev, I. Naumov, I. Ponomareva, S. Prosandeev, Wei Ren, D. Sichuga and D. Wang.

– Invited presentation at the 2011 MRS Fall Meeting; Boston, MA, November 28 – December 2, 2011; “Tuning Multiferroic Order Parameters with Epitaxial Strain in BiFeO₃,” Agnes Barthelemy, I. Infante, H. Bea, J. Juraszek, S. Jouen, K. Bouzehouane, S. Fusil, F. Pailloux, E. Jacquet, G. Geneste, J. Pacaud, J. Iñiguez, L. Bellaiche, B. Dkhil and M. Bibes.

– Invited presentation at the 20th IEEE International Symposium on Applications of Ferroelectrics; Vancouver, Canada, July 24-27, 2011; “Relaxors under stress,” P.-E. Janolin, J.M. Kiat, B. Dkhil, N. Pertsev, L. Bellaiche, Y. Uesu, I. Kornev, A. Bataille, J. Kreisel, P. Bouvier and P.A. Thomas.

– Invited presentation at the 21st Users Group Conference, DoD High Performance Computing Modernization Program, Portland, OR, 20-23 June, 2011; “Dielectric Response in Ferroelectric Superlattices from First-Principles,” S. Lisenkov and L. Bellaiche.

– Invited seminar at the CNRS-Thales laboratory, Palaiseau, France, July 6, 2011; “Ferroelectric Vortices,” L. Bellaiche, A.R. Akbarzadeh, H. Fu, I. Kornev, I. Naumov, I. Ponomareva, S. Prosandeev, Wei Ren, D. Sichuga and D. Wang.

– Invited presentation at the Workshop 2011 on Functional Oxides; Xi’an, China, June 3-5, 2011; “Ferroelectric Vortices,” L. Bellaiche, A.R. Akbarzadeh, H. Fu, I. Kornev, I. Naumov, I. Ponomareva, S. Prosandeev, Wei Ren, D. Sichuga and D. Wang.

– Invited presentation at the 2011 MRS Spring Meeting; San Francisco, California, April 25-29, 2011; “Properties of multiferroic and ferroelectric nanostructures from first principles,” L. Bellaiche, B. Dupé, S. Lisenkov, S. Prosandeev, Wei Ren and D. Sichuga.

– Invited presentation at the 2011 APS March Meeting; Dallas, Texas, March 21-25, 2011; “Ferroelectric vortices from atomistic simulations,” L. Bellaiche, A.R. Akbarzadeh, H. Fu, I. Kornev, I. Naumov, I. Ponomareva, S. Prosandeev, Wei Ren and D. Sichuga.

–  Invited presentation at the 2011 Workshop on Fundamental Physics of Ferroelectrics and Related Materials; Gaithersburg, MD, January 30-February, 02, 2011; “Geometric frustration in compositionally modulated ferroelectrics,” N. Choudhury, L. Walizer, S. Lisenkov and L. Bellaiche.

–  Invited presentation at the 2011 Workshop on Fundamental Physics of Ferroelectrics and Related Materials; Gaithersburg, MD, January 30-February, 02, 2011; “Kittel law in BiFeO₃ ultrathin films: An effective Hamiltonian study,” S. Prosandeev, S. Lisenkov and L. Bellaiche.

–  Invited presentation at the 2011 Workshop on Fundamental Physics of Ferroelectrics and Related Materials; Gaithersburg, MD, January 30-February, 02, 2011; “When polar shifts and oxygen tilts meet together: the case of model multiferroic BiFeO₃,” B. Dupé,  I. C. Infante, S. Lisenkov, H. Toupet, M. Bibes, S. Fusil, E. Jacquet, P.-E. Janolin, G. Géneste, F. Le Marrec, L. Bellaiche, A. Barthélémy and B. Dkhil.

–  Invited presentation at the Europeen Meeting on Ferroelectricity; Bordeaux, France,  June 26 – July 2, 2011;  “Unusual features in multiferroic BiFeO₃ thin films,” B. Dupé, I. C. Infante, S. Lisenkov, H. Toupet,  M. Bibes, S. Fusil, E. Jacquet, P.-E. Janolin, G. Géneste, F. Le Marrec, L. Bellaiche, A. Barthélémy and B. Dkhil.

–  Invited presentation at the Europeen Meeting on Ferroelectricity; Bordeaux, France,  June 26 – July 2, 2011; “Low symmetry ground states in relation with relaxation, size/strain effects and antiferrodistortion in lead scandium niobate (PSN),” J.M. Kiat, P.E. Janolin, R. Haumont, N.A. Perstev, Y, Uesu, C. Bogicevic, W. Ren, L. Bellaiche and A. Bataille.

– Invited presentation at the HPCMP UGC 2010, Schaumburg, IL, June 14 – 17, 2010; “Tackling Complex Phenomena in Ferroelectrics and Multiferroics,” Wei Ren, S. Lisenkov and L. Bellaiche.

– Invited presentation at the CECAM workshop “Theory of Magnetoelectrics: Fundamentals and Applications”, Lausanne, Switzerland, May 26 – May 28, 2010; “Electric-field induced phenomena in multiferroic BiFeO₃,” S. Lisenkov, D. Rahmvedov and L. Bellaiche.

– Invited presentation at the 2010 Cyberinfrastructure Days; Fayetteville, Arkansas, May 16-18, 2010; “Investigation of Nanostructures from Atomistic Simulations” Laurent Bellaiche.

– Invited presentation at the 2010 MRS Spring Meeting; San Francisco,  California, April 5-9, 2010; “Discovery of Original Phenomena in Low-dimensional  Ferroelectrics and Multiferroics” Laurent Bellaiche, Alireza Akbarzadeh, David Albrecht, Igor Kornev, Sergey Lisenkov, Inna Ponomareva, Sergey Prosandeev, Dovran Rahmedov, Wei Ren and David Sichuga.

– Invited presentation at the ISIF 2010 symposium; San Juan, Puerto Rico, June 13-16, 2010; “Strain Tuning Multiferroic BiFeO₃ Film Phases and Transitions,” I. C. Infante, B. Dupé, S. Lisenkov, I. Ponomareva, L. Bellaiche, G. Geneste, P.-E. Janolin, S. Ravy, S. Petit, H. Béa, B. Warot-Fonrose, K. Bouzehouane, S. Fusil, E. Jacquet, M. Bibes, B. Dkhil, A. Barthélémy.

– Invited presentation at the “Theory of Magnetoelectrics:  Fundamentals and Applications” workshop; Lausanne (Switzerland), May 26–May 28, 2010; “Effective Hamiltonian Approach to Multiferroics” I. Kornev, L. Bellaiche, S. Lisenkov, B. Dkhil and R. Haumont.

– Invited presentation at the 2010 Workshop on Advances in the Fundamental  Physics of Ferroelectrics and Related Materials; Aspen, Colorado, January 31 — February 5, 2010; “Antiferrodistortive-induced phenomena in ferroelectrics and multiferroics” D. Albrecht, L. Bellaiche, I. Kornev, S. Lisenkov, I. Ponomareva, S. Prosandeev, D. Rahmedov, Wei Ren, D. Sichuga and Dawei Wang.

– Invited presentation at the 2010 Workshop on Advances in the Fundamental  Physics of Ferroelectrics and Related Materials; Aspen, Colorado, January 31 — February 5, 2010; “Giant axial ratio multiferroic BiFeO₃ phase” H. Béa

– Invited presentation at the 2010 Workshop on Advances in the  Fundamental Physics of Ferroelectrics and Related Materials; Aspen, Colorado, January 31 — February 5, 2010; “Relaxors and morphotropic compounds: what happens when size is reduced?” J.M. Kiat, C. Bogicevic, W. Ren, L. Bellaiche, R. Haumont, B. Dkhil and J. Carreaud

– Invited presentation at the International Symposium on Integrated Ferroelectrics and Functionalities (ISIF) 2009; Colorado Springs, CO, September, 27-30, 2009; “Complex Phenomena in Ba_0.5Sr_0.5TiO₃ alloys from atomistic simulations,” L. Bellaiche, S. Lisenkov, I. Ponomareva, and R. Resta

– Invited presentation at the 2009 Villa Conference  on Complex  Oxide Heterostructures (VC-COH); St. Thomas, USVI, September, 13-18,  2009; “Discovery of original phenomena in ferroelectrics, ferromagnetics and multiferroics from atomistic simulations,” L. Bellaiche, I. Kornev, S. Lisenkov, I. Ponomareva, S.  Prosandeev, D. Rahmedov and D. Sichuga

– Invited presentation at the XVIII International Materials Research Congress, Cancun (Mexico), August 16-21, 2009; “Atomic Insight Into Complex Phenomena in Ferroelectric Alloys,” L. Bellaiche, S. Lisenkov, I. Ponomerava and R. Resta

– Invited presentation at  the Nanosystem Engineering and Biophotonics (NEBO’09) international conference; Ecole Normale Superieure de Cachan, March 30-April 1, 2009; “First Principles Multiscale Computational Modeling of Ferroelectric Nanostructures,” I. Kornev, S. Prosandeev, Bo-Kuai Lai, I. Naumov, I. Ponomerava and L. Bellaiche

– Invited presentation at the 2009 Workshop on Fundamental Physics of Ferroelectrics; Williamsburg, Virginia, February, 08-11, 2009; “Modeling of compositionally graded barium strontium titanate from first principles” L. Walizer, S. Lisenkov, I. Ponomareva and L. Bellaiche.

– Invited presentation at the 2009 Workshop on Fundamental Physics of Ferroelectrics; Williamsburg, Virginia, February, 08-11, 2009; “T* in relaxors and other systems,” B. Dkhil, P. Gemeiner, A. Al-Barakaty, L. Bellaiche, E. Dul’kin, E. Mojaev and M. Roth

– Invited presentation at the 2009 Workshop on Fundamental Physics of Ferroelectrics; Williamsburg, Virginia, February, 08-11, 2009; “Original properties of dipole vortices in zero-dimensional  ferroelectrics,”  S. Prosandeev, I. Ponomareva, I. Naumov, A.R. Akbarzadeh and L. Bellaiche.

– Invited presentation at the 2009 Workshop on Fundamental Physics of Ferroelectrics; Williamsburg, Virginia, February, 08-11, 2009; “Soft mode in BaTiO₃ has a little brother,” J. Hlinka,  T. Ostapchuk, D. Nuzhnyj, J. Petzelt, P. Kuzel, C. Kadlec, P. Vanek, I. Ponomareva and L. Bellaiche.

– Invited presentation at the 2009 Workshop on Fundamental Physics of Ferroelectrics; Williamsburg, Virginia, February, 08-11, 2009; “Dynamical coupling between polarization and strain in ferroelectrics nanolayers from first principles,” I. Ponomarevaand L. Bellaiche.

– Invited presentation at the 2009 Workshop on Fundamental Physics of Ferroelectrics; Williamsburg, Virginia, February, 08-11, 2009; “Properties of epitaxial BiFeO₃ thin films: a combined theoretical and experimental approach,” B. Dupe, I. C. Infante, S. Lisenkov, I. Ponomareva, L. Bellaiche, G. Geneste, H. Bea, S. Fusil, J. Allibe, E. Jacquet, M. Bibes, A. Barthelemy, and B. Dkhil.

–  Invited presentation at the 2009 Workshop on Fundamental Physics of Ferroelectrics; Williamsburg, Virginia, February, 08-11, 2009; “Discovery of original phenomena in ferroelectrics and multiferroics from first principles,” L. Bellaiche,  I. Kornev, S. Lisenkov, I. Ponomareva, and D. Sichuga.

– Invited presentation at the 2008 Workshop to Develop an EPSCOR  Consortium; Fayetteville, Arkansas, August 18-19, 2008; “Recent Theoretical Advances in Multiferroics and  Ferroelectric Nanostructures,” L. Bellaiche, I. Kornev, S. Lisenkov, I. Ponomareva,  S. Prosandeev, B. Dkhil and R. Resta.

– Invited presentation at the 2008 APS March Meeting; New Orleans, Louisiana, March 10-14, 2008;
“Properties of Ferroelectric Nanostructures,” Inna Ponomareva, L. Bellaiche, I. Kornev, B.-K. Lai, I.I. Naumov, R. Resta and S. Prosandeev.

– Invited presentation at the 2008 SIAM Conference on Mathematical Aspects of Materials Science (MS08); Philadelphia, Pennsylvania, May 11-14, 2008;
“Computational modeling of multifunctional materials,” I. Kornev, S. Lisenkov, R. Haumont, B. Dkhil and L. Bellaiche.

– Keynote presentation at the International Conference on Computational and Experimental Engineering and Sciences; Honolulu, Hawaii, March 16-22, 2008;
“Control of vortices by homogeneous fields in asymmetric dipolar systems,” S. Prosandeev, I. Ponomareva, I. Kornev and L. Bellaiche.

– Presentation at the 2008 Workshop on Fundamental Physics of Ferroelectrics; Williamsburg, Virginia, February, 10-13, 2008;
“Control of vortices by homogeneous fields in asymmetric ferroelectric and ferromagnetic rings: An unifying theoretical approach,” S. Prosandeev, I. Ponomareva, I. Kornev and L. Bellaiche.

– Presentation at the 2008 Workshop on Fundamental Physics of Ferroelectrics; Williamsburg, Virginia, February, 10-13, 2008;
“Properties of ferroelectrics, ferromagnetics, and multiferroics from atomistic simulations,” L. Bellaiche, S. Bin-Omran, I. Kornev, S. Lisenkov, L. Louis, I. Ponomareva, S. Prosandeev, R. Haumont, G. Geneste, B. Dkhil, T. Ostapchuk, J. Hlinka and J. Petzelt.

– Presentation at the 2008 Workshop on Fundamental Physics of Ferroelectrics; Williamsburg, Virginia, February, 10-13, 2008;
“High-frequency dielectric response of paraelectric BaTiO₃,” I. Ponomareva, L. Bellaiche, T. Ostapchuk, J. Hlinka and J. Petzelt.

– Presentation at the 2008 Workshop on Fundamental Physics of Ferroelectrics; Williamsburg, Virginia, February, 10-13, 2008;
“Finite-temperature properties of multiferroic BiFeO₃ from first principles,” I. A. Kornev, S. Lisenkov, R. Haumont, B. Dkhil and L. Bellaiche.

– Invited presentation at the European School on Multiferroics; Grenoble, France; July 02-06, 2007;
“Effective Hamiltonian approaches,” L. Bellaiche.

– Invited presentation at the 14th Semiconducting and Insulating Materials Conference (SIMC-XIV); Fayetteville, Arkansas; May 15-20, 2007;
“Unusual phenomena in ferroelectrics,” L. Bellaiche, Huaxiang Fu, I. Kornev, Bo-Kuai Lai, Sergey Lisenkov, Ivan I. Naumov, I. Ponomareva, Sergey  Prosandeev and G.J. Salamo.

– Invited presentation at the International Symposium on Integrated Ferroelectrics (ISIF) 2007;  Bordeaux, France;  May 8-12, 2007;
“Unusual phenomena in ferroelectrics,” L. Bellaiche, P. Bouvier, B. Dkhil, Huaxiang Fu, P.-E. Janolin, I. Kornev, J. Kreisel, Bo-Kuai Lai, Sergey Lisenkov,  Ivan I. Naumov, I. Ponomareva, Sergey Prosandeev, G.J. Salamo, and E. Suard.

– Colloquium at Institute of Physics, Prague, Czech Republic, March 27 2007;
“Designing and understanding nanowonders from first-principles”, L. Bellaiche.

–  Invited presentation at the 2007 APS March Meeting; Denver, Colorado, March 5-9, 2007;
“Unusual phenomena in nanodots of ferroelectrics,”  S. Prosandeev, I. Ponomareva,  I. Kornev, I. Naumov and L. Bellaiche.

– Presentation at the 2007 Workshop on Fundamental Physics of Ferroelectrics; Williamsburg, Virginia, February, 11-14, 2007;
“Phase diagram of Pb(Zr,Ti)O₃ solid solutions from first principles”, Igor A. Kornev, L. Bellaiche,  P.-E. Janolin, B. Dkhil and E. Suard.

– Presentation at the 2007 Workshop on Fundamental Physics of Ferroelectrics; Williamsburg, Virginia, February, 11-14, 2007;
“Novel depolarizing-field-induced phenomena in ferroelectric nanostructures”,  L. Bellaiche, I. Kornev, Bo-Kuai Lai, Sergey Lisenkov,  I. Ponomareva, Sergey Prosandeev, and  R. Resta.

– Presentation at the 2007 Workshop on Fundamental Physics of Ferroelectrics; Williamsburg, Virginia, February, 11-14, 2007;
“Ferroelectric Nanoscale Domain Structures computed by Finite Element”, D. Albrecht, D. Aubry,  L. Bellaiche and B. Dkhil.

– Presentation at the 2007 Workshop on Fundamental Physics of Ferroelectrics; Williamsburg, Virginia, February, 11-14, 2007;
“First-principles study of electric-field-induced domain evolution in  ferroelectric ultrathin films”,  Bo-Kuai Lai, I. Ponomareva, I. I. Kornev, L. Bellaiche and G. J. Salamo.

– Colloquium at ICMAB, Barcelona, Spain, January 18 2007;
“Designing and understanding nanowonders from first-principles”, L. Bellaiche.

– Colloquim at the the Joint Institute for Nuclear Research in Dubna, Russia, December 21-23, 2006;
“Toroidal moments in low-dimensional (nano) structures of ferroelectrics,” S. Prosandeev, I. Ponomareva, I. Naumov, I. Kornev, and L. Bellaiche.

– Invited presentation at the 8th International Conference on Solid-State and Integrated-Circuit Technology, Shanghai (China), October 21-27, 2006;
“Controlling the toroidal moment in ferroelectric dots”, S. Prosandeev, I. Ponomareva, I. Naumov, I. Kornev, and L.  Bellaiche.

– Invited presentation at the 18th International Symposium on Integrated Ferroelectrics (ISIF 2006), Honolulu, Hawaii, April 23-27, 2006;
“Phase Transitions and Ferroelectricity in Pb(ZrTi)O₃ Nanodots and Nanowires”, Ivan Naumov, Laurent Bellaiche and H. Fu.

– Invited presentation at the INBRE conference; Fayetteville, Arkansas, February 25, 2006;
“Materials By Design”, Huaxiang Fu and L. Bellaiche.

– Invited presentation at the 2005 American Conference on Crystal Growth and Epitaxy; Big Sky Resort, Montana, July 10, 2005;
“Phase Transitions in ferroelectric Nanostructures”, given by Ivan I. Naumov.

– Invited presentation at the Japanese Physical Society meeting; Chiba, Japan, March 19, 2005;
“Study of complex ferroelectrics from first-principles”, given by L. Bellaiche.

– Colloquim at Waseda University; Tokyo, Japan, March 15, 2005;
“Building nanowonders from scratch”, given by L. Bellaiche.

– Invited presentation at the 42nd annual New Horizons in Science Briefing; Fayetteville (AR), November 07-10, 2004;
“Building the next nanowonders from scratch”, given by L. Bellaiche.

– Invited presentation at ACM midwest regional meeting; Manhattan, Kansas , October 20-22, 2004;
“Unusual phase transition in alloys of ScN/GaN and ScN/InN”, given by V. Ranjan.

– Invited presentation at the XIII International Materials Research Congress; Cancun (Mexico), August 23-24, 2004;
“Properties of Ferroelectric Nanostructures From First-Principles”, given by L. Bellaiche.

– Colloquium at Ecole Centrale; Paris (France), June 22, 2004;
“Properties of Ferroelectric Thin Films From First-Principles”, presented by L. Bellaiche.

– Invited presentation at the 3rd “International Conference on Computational Modeling and Simulation of Materials”; Acireale, Sicily (Italy), May 30-June 4, 2004;
“First-principles investigations of perovskite ferroelectric systems”, presented by H. Fu.

– Invited presentation at the 2004 Workshop on Fundamental Physicsof Ferroelectrics; Williamsburg, Virginia, February, 8-11, 2004;
“Ferroelectric BaTiO₃ Quantum Dots”, presented by H. Fu.

– Invited presentation at the 2004 Workshop on Fundamental Physicsof Ferroelectrics; Williamsburg, Virginia, February, 8-11, 2004;
“High pressure phases in highly piezoelectricPbZr_0.52Ti_0.48O₃”, presented by I. Kornev.

– Invited presentation at the 2004 conference onMaterial technology and Design of Integrated Piezoelectric Devices; Courmayer (Italy), February 2-4, 2004;
“Understanding and design of insulating perovskites from first-principles”, presented by L. Bellaiche.

– Colloquium at Ecole Centrale; Paris (France), June 19, 2003;
“Finite-Temperature Properties of Ferroelectric Alloys From First Principles” , presented by L. Bellaiche.

– Colloquium at the University of Arkansas (Chemistry department); Fayetteville (AR), March, 2003;
“Finite-Temperature Properties of Ferroelectric Alloys From First Principles” , presented by L. Bellaiche.

– Invited presentation at the 2003 Workshop on FundamentalPhysics of Ferroelectrics; Williamsburg, VA, February 2-5 2003;
”Properties of Piezoelectric Materials from First Principles” , presented by Laurent Bellaiche.

– Colloquium at the University of Arkansas, Fayetteville (AR),September 27, 2002;
“Finite temperature properties of ferroelectric alloys from first principles”, presented by Laurent Bellaiche.

– Invited presentation at the kickoff meeting on ONR Designof Piezoelectric Materials for Transducers Program; Washington D.C., May 9 2002;
“T-dependent and electrically induced phase transitionsfrom first-principles derived effective Hamiltonians,”, presented by Laurent Bellaiche.

– Invited presentation at the 2002 Workshop on FundamentalPhysics of Ferroelectrics; Washington D.C., February 3-6 2002;
“Electric-Field Induced Polarization Paths and ActiveOptical Phonons in Perovskite Alloys”, presented by Laurent Bellaiche.

– Invited presentation at the 2001 MRS Fall Meeting, Boston, November 26-30, 2001;
“Electronic and Optical anomalies in complex nitridealloys”, presented by Laurent Bellaiche.

– Invited presentation at the 2001 International Narrow Band-gapNitride Semiconductors Workshop; Singapore, October 7-11, 2001;
    `Optical and Electronic Properties of [Ga,In][As,N] Alloys”, presented by Ahmad Al-Yacoub.

– Invited presentation at the 2001 Workshop on Thermodynamicand Structural Properties of Materials; Avignon, France, September 9-14 2001;
    `Anomalous properties in ferroelectricsinduced by atomic ordering”, presented by Aaron George.

– Invited presentation at the 2001 March Meeting of the AmericanPhysical Society; Seattle (WA), March 12-16 2001;
    `Finite-Temperature Properties of Ferroelectric solid solutions From First-Principles”, presented by Laurent Bellaiche.

– Invited presentation at the 2001 Workshop on FundamentalPhysics of Ferroelectrics; Williamsburg (VA), February 4-7 2001;
“Composition modulation in Pb(Sc,Nb)O₃ alloys”,  presented by Laurent Bellaiche.

– Invited presentation at the 2000 polarization effects onsemiconductors Workshop; Glacier National Park, Montana, August 27-31 2000;
    “Anomalous optical properties in complexsemiconductor alloys ”, presented by Ahmad Al-Yacoub.

– Invited presentation at the Twelfth Annual Workshop on RecentDevelopments in Electronic Structure Methods, Atlanta, Georgia , May 19-22, 2000;  “Finite-Temperature Properties of FerroelectricAlloys From First-Principles”, presented by Laurent Bellaiche.

– Invited presentation at the 1999 March Meeting of the AmericanPhysical Society; Atlanta (GA), March 20-26 1999;
   “Structural Properties of Ferroelectric Alloys”,presented by Laurent Bellaiche.

– Invited presentation at the 1998 March Meeting of the American Physical Society; Los Angeles (CA), March 16-20 1998;
    “Electronic Structure of Nitride Alloys”, presented by Laurent Bellaiche.