Chirality and polarization of inertial antiferromagnetic resonances driven by spin-orbit torques
Fuente:
arXiv
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866917138345754624 |
|---|---|
| author | He, Peng-Bin Wang, Ri-Xing Li, Zai-Dong Cherkasskii, Mikhail |
| author_facet | He, Peng-Bin Wang, Ri-Xing Li, Zai-Dong Cherkasskii, Mikhail |
| contents | It is widely accepted that the handedness of a resonant mode is an intrinsic property. We show that, by tailoring the polarization and handedness of alternating spin-orbit torques used as the driving force, the polarization state and handedness of inertial resonant modes in an antiferromagnet (AFM) can be actively controlled. In contrast with ferromagnets, whose resonant-mode polarization is essentially fixed, AFM inertial modes can continuously evolve from elliptic through circular to linear polarization as the driving polarization is varied. We further identify an inertia-dependent critical degree of driving polarization at which the mode becomes linearly polarized while its handedness reverses. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_10323 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Chirality and polarization of inertial antiferromagnetic resonances driven by spin-orbit torques He, Peng-Bin Wang, Ri-Xing Li, Zai-Dong Cherkasskii, Mikhail Mesoscale and Nanoscale Physics It is widely accepted that the handedness of a resonant mode is an intrinsic property. We show that, by tailoring the polarization and handedness of alternating spin-orbit torques used as the driving force, the polarization state and handedness of inertial resonant modes in an antiferromagnet (AFM) can be actively controlled. In contrast with ferromagnets, whose resonant-mode polarization is essentially fixed, AFM inertial modes can continuously evolve from elliptic through circular to linear polarization as the driving polarization is varied. We further identify an inertia-dependent critical degree of driving polarization at which the mode becomes linearly polarized while its handedness reverses. |
| title | Chirality and polarization of inertial antiferromagnetic resonances driven by spin-orbit torques |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2507.10323 |