Bulletin of the American Physical Society
2024 APS March Meeting
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session K58: Electrons, Phonons, Electron-Phonon Scattering, and Phononics V
3:00 PM–5:00 PM,
Tuesday, March 5, 2024
Room: 205D
Sponsoring
Unit:
DCOMP
Chair: Shashi Mishra, Binghamton University
Abstract: K58.00005 : Peltier effect of phonons driven by electromagnetic waves*
4:12 PM–4:24 PM
Presenter:
Hiroaki Ishizuka
(Tokyo Institute of Technology, Tokyo)
Author:
Hiroaki Ishizuka
(Tokyo Institute of Technology, Tokyo)
In this work, we show that a Peltier effect analog of phonons occurs in a material subject to linearly polarized light. Under light illumination, an energy current of phonons occurs through a nonlinear optical effect similar to the bulk photovoltaic effect. We formulate the nonlinear Peltier coefficient of the photogalvanic energy current carried by phonons using nonlinear response theory. From the general formula, we show that the photogalvanic energy current occurs only in a non-centrosymmetric system with two or more optical phonon bands. We demonstrate the generation of the photogalvanic energy current using a one-dimensional ion chain with three ions in a unit cell, which predicts the generation of an experimentally observable energy current using available THz-infrared light sources.
*This work is supported by JSPS KAKENHI (Grant Numbers JP19K14649, JP23K03275, JP20H01830, and JP20H01849), and by a Grant-in-Aid for Scientific Research on Innovative Areas "Quantum Liquid Crystals" (Grant No. JP19H05825) and "Evolution of Chiral Materials Science using Helical Light Fields" (Grants No. JP22H05131 and No. JP23H04576) from JSPS of Japan.
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