Intrinsic spin-orbit torque mechanism for deterministic all-electric switching of noncollinear antiferromagnets
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| _version_ | 1866910389317402624 |
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| author | Chen, Yiyuan Du, Z. Z. Lu, Hai-Zhou Xie, X. C. |
| author_facet | Chen, Yiyuan Du, Z. Z. Lu, Hai-Zhou Xie, X. C. |
| contents | Using a pure electric current to control kagome noncollinear antiferromagnets is promising in information storage and processing, but a full description is still lacking, in particular, on intrinsic (i.e., no external magnetic fields or external spin currents) spin-orbit torques. In this work, we self-consistently describe the relations among the electronic structure, magnetic structure, spin accumulations, and intrinsic spin-orbit torques, in the magnetic dynamics of a noncollinear antiferromagnet driven by a pure electric current. Our calculation can yield a critical current density comparable with those in the experiments, when considering the boost from the out-of-plane magnetic dynamics induced by the current-driven spin accumulation on individual magnetic moments. We stress the parity symmetry breaking in deterministic switching among magnetic structures. This work will be helpful for future applications of noncollinear antiferromagnets. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2303_06929 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Intrinsic spin-orbit torque mechanism for deterministic all-electric switching of noncollinear antiferromagnets Chen, Yiyuan Du, Z. Z. Lu, Hai-Zhou Xie, X. C. Mesoscale and Nanoscale Physics Using a pure electric current to control kagome noncollinear antiferromagnets is promising in information storage and processing, but a full description is still lacking, in particular, on intrinsic (i.e., no external magnetic fields or external spin currents) spin-orbit torques. In this work, we self-consistently describe the relations among the electronic structure, magnetic structure, spin accumulations, and intrinsic spin-orbit torques, in the magnetic dynamics of a noncollinear antiferromagnet driven by a pure electric current. Our calculation can yield a critical current density comparable with those in the experiments, when considering the boost from the out-of-plane magnetic dynamics induced by the current-driven spin accumulation on individual magnetic moments. We stress the parity symmetry breaking in deterministic switching among magnetic structures. This work will be helpful for future applications of noncollinear antiferromagnets. |
| title | Intrinsic spin-orbit torque mechanism for deterministic all-electric switching of noncollinear antiferromagnets |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2303.06929 |