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Time-reversal switching responses in antiferromagnets
| Title: | Time-reversal switching responses in antiferromagnets |
| Authors: | Hayami, Satoru Browse this author | | Kusunose, Hiroaki Browse this author →KAKEN DB |
| Issue Date: | 1-Oct-2023 |
| Publisher: | American Physical Society (APS) |
| Journal Title: | Physical Review B |
| Volume: | 108 |
| Issue: | 14 |
| Start Page: | L140409 |
| Publisher DOI: | 10.1103/PhysRevB.108.L140409 |
| Abstract: | We propose emergent time-reversal switching responses in antiferromagnets, which are triggered by an accompanying magnetic toroidal monopole, i.e., a time-reversal odd scalar distinct from electric and magnetic monopoles. We show that simple collinear antiferromagnets exhibit unconventional responses to external electric and/or magnetic fields once magnetic symmetry accommodates the magnetic toroidal monopole. We specifically demonstrate that the emergence of the magnetic toroidal monopole in antiferromagnets enables us to control rotational distortion by an external magnetic field, switch vortex-type antiferromagnetic structure by an external electric field, and convert right-handedness/left-handedness in chirality by a composite electromagnetic field. We also present the symmetry conditions to induce the magnetic toroidal monopole and exhibit candidate materials including noncollinear antiferromagnets in order to stimulate experimental observations. |
| Rights: | ©2023 American Physical Society |
| Type: | article |
| URI: | http://hdl.handle.net/2115/92436 |
| Appears in Collections: | 理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 速水 賢
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