Bulletin of the American Physical Society
2023 APS March Meeting
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session S38: Light Induced Structural Control of Electronic Phases IV
8:00 AM–10:48 AM,
Thursday, March 9, 2023
Room: Room 230
Sponsoring
Unit:
DMP
Chair: Takashi Oka, Institute for solid state physics, The University of Tokyo
Abstract: S38.00004 : Ultrafast manipulation of multiferroic BiFeO3 through light-driven phonons.*
9:00 AM–9:12 AM
Presenter:
Daniel Bustamante
(Boston University)
Authors:
Daniel Bustamante
(Boston University)
Dominik Juraschek
(Tel Aviv University)
Xianghan Xu
(Rutgers University)
Sang-Wook Cheong
(Rutgers University)
Wanzheng Hu
(Boston University)
Nonlinear phononics is an emerging approach, in which intense mid-infrared or terahertz laser pulses are used to resonantly excite optical phonons. The high-peak electric fields drive phonon oscillations to large amplitudes. This leads to quasistatic lattice distortion due to strong anharmonic couplings between phonons. The lattice deformation modifies the microscopic Hamiltonian of the system on average, which provides a unique platform to engineer novel functionalities which may not exist in equilibrium, and to achieve selective control of quantum phases such as ferroelectric polarization and magnetic orderings. In this talk, I will present our recent results on the ultrafast manipulation of multiferroic BiFeO3 by nonlinear phononics.
*This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences Early Career Research Program under Award Number DE-SC-0021305.
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