Nonlinear nonreciprocal transport in antiferromagnets free from spin-orbit coupling

Hayami, Satoru; Yatsushiro, Megumi

Physical Review B, 2022, 106(1), 014420

Permalink : https://hdl.handle.net/2115/86670

このアイテムのアクセス数:317件（2026-01-25 12:58 集計）

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Phys. Rev. B_106(1)_014420	pdf	1.23 MB	280

アクセス権	open access
URI	https://hdl.handle.net/2115/86670
タイトル	Nonlinear nonreciprocal transport in antiferromagnets free from spin-orbit coupling
著者	著者名 Hayami, Satoru
著者	著者名 Yatsushiro, Megumi
言語	英語
発行日	2022-07-26
出版者	American Physical Society (APS)
収録物名	Physical Review B
巻(号)	106(1)
ページ	014420
抄録	We theoretically propose a realization of nonlinear nonreciprocal transport in antiferromagnets without relying on the relativistic spin-orbit coupling. Through symmetry and microscopic model analyses, we show that a local spin scalar chirality inducing an asymmetric band modulation becomes a source of a Drude-type nonlinear transport, while an electric polarization induced by a collinear spin configuration in a triangle unit leads to a Berry-curvature-dipole-type nonlinear transport. We demonstrate 120 degrees antiferromagnetic ordering on a triangular lattice and a breathing kagome lattice in an external magnetic field as typical examples. Our results open another direction for the design and engineering of functional materials to show rich parity-violating transport phenomena induced by spontaneous magnetic phase transitions even without the spin-orbit coupling.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	©2022 American Physical Society
PISSN	2469-9950
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1103/PhysRevB.106.014420