Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session K21: Emergent Properties: Synthesis and Interfacial Effects
3:00 PM–6:00 PM,
Tuesday, March 5, 2024
Room: 101A
Sponsoring
Unit:
GMAG
Chair: Jennifer Fowlie, Stanford University
Abstract: K21.00013 : Chirality-dependent shift current based on spotaneous rotation symmetry breaking
5:48 PM–6:00 PM
Presenter:
Naoto Okuzumi
(Tokyo Institute of Technology)
Authors:
Naoto Okuzumi
(Tokyo Institute of Technology)
Shuichi Murakami
(Tokyo Institute of Technology, Tokyo)
We consider a spin model on a 3D layered honeycomb lattice with interlayer interactions along a helical direction, which makes the crystal structure chiral. By including up to intralayer next-nearest neighbor exchange interactions, the spins become frustrated, and their configrations breaks rotational symmetry. We show that it induces a nonzero shift current, whose direction depends on the chirality of the crystal. We demonstrate that the the correction term linear in the wavenumber of light exists and it does not depend on the chirality of the crystal.
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