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Scalar spin chirality induced by a circularly polarized electric field in a classical kagome magnet
| Title: | Scalar spin chirality induced by a circularly polarized electric field in a classical kagome magnet |
| Authors: | Yambe, Ryota Browse this author | | Hayami, Satoru Browse this author |
| Issue Date: | 1-Feb-2024 |
| Publisher: | American Physical Society (APS) |
| Journal Title: | Physical Review B |
| Volume: | 109 |
| Issue: | 6 |
| Start Page: | 064428 |
| Publisher DOI: | 10.1103/PhysRevB.109.064428 |
| Abstract: | Noncoplanar magnetic states with a scalar spin chirality have been intensively studied in condensed matter physics, since they exhibit fascinating physical phenomena. We theoretically propose the generation of such noncoplanar magnetic states by using a circularly polarized electric field. By performing the micromagnetic simulation, we investigate a time evolution of a classical kagome magnet irradiated by the circularly polarized electric field. As a result, we find that the noncoplanar magnetic states are induced as a nonequilibrium steady state irrespective of the ground -state spin configurations. We show that the induced scalar spin chirality is controlled by the amplitude, frequency, and polarization of the electric field. In addition, we clarify that the mechanism of the noncoplanar magnetic states is accounted for by effective field -induced three -spin interactions by adopting the Floquet formalism in the high -frequency regime. We also show a condition to enhance the scalar spin chirality. Our results present a reference for controlling the noncoplanar magnetic states and related phenomena by the circularly polarized electric field. |
| Rights: | ©2024 American Physical Society |
| Type: | article |
| URI: | http://hdl.handle.net/2115/92439 |
| 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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