Emergent electric field induced by dissipative sliding dynamics of domain walls in a Weyl magnet
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2026
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866914258049040384 |
|---|---|
| author | Yamada, Rinsuke Kurebayashi, Daichi Fujishiro, Yukako Okumura, Shun Nakamura, Daisuke Yasin, Fehmi S. Nakajima, Taro Yokouchi, Tomoyuki Kikkawa, Akiko Taguchi, Yasujiro Tokura, Yoshinori Tretiakov, Oleg A. Hirschberger, Max |
| author_facet | Yamada, Rinsuke Kurebayashi, Daichi Fujishiro, Yukako Okumura, Shun Nakamura, Daisuke Yasin, Fehmi S. Nakajima, Taro Yokouchi, Tomoyuki Kikkawa, Akiko Taguchi, Yasujiro Tokura, Yoshinori Tretiakov, Oleg A. Hirschberger, Max |
| contents | The dynamic motion of topological defects in magnets induces an emergent electric field, as exemplified by the continuous flow of skyrmion vortices. However, the electrodynamics underlying this emergent field remains poorly understood. In this context, magnetic domain walls - one dimensional topological defects with two collective modes, sliding and spin tilt - offer a promising platform for exploration. Here, we demonstrate that the dissipative motion of domain walls under oscillatory current excitation generates an emergent electric field. We image domain patterns and quantify domain wall length under applied magnetic fields in mesoscopic devices based on the magnetic Weyl semimetal NdAlSi. These devices exhibit exceptionally strong domain wall scattering and a pronounced emergent electric field, observed in the imaginary component of the complex impedance. Spin dynamics simulations reveal that domain wall sliding dominates over spin tilting, where the phase delay of the domain wall motion with respect to the driving force impacts the emergent electric field. Our findings establish domain-wall dynamics as a platform for studying emergent electromagnetic fields and motivate further investigations on the coupled motion of magnetic solitons and conduction electrons. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_10638 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Emergent electric field induced by dissipative sliding dynamics of domain walls in a Weyl magnet Yamada, Rinsuke Kurebayashi, Daichi Fujishiro, Yukako Okumura, Shun Nakamura, Daisuke Yasin, Fehmi S. Nakajima, Taro Yokouchi, Tomoyuki Kikkawa, Akiko Taguchi, Yasujiro Tokura, Yoshinori Tretiakov, Oleg A. Hirschberger, Max Mesoscale and Nanoscale Physics Materials Science Strongly Correlated Electrons The dynamic motion of topological defects in magnets induces an emergent electric field, as exemplified by the continuous flow of skyrmion vortices. However, the electrodynamics underlying this emergent field remains poorly understood. In this context, magnetic domain walls - one dimensional topological defects with two collective modes, sliding and spin tilt - offer a promising platform for exploration. Here, we demonstrate that the dissipative motion of domain walls under oscillatory current excitation generates an emergent electric field. We image domain patterns and quantify domain wall length under applied magnetic fields in mesoscopic devices based on the magnetic Weyl semimetal NdAlSi. These devices exhibit exceptionally strong domain wall scattering and a pronounced emergent electric field, observed in the imaginary component of the complex impedance. Spin dynamics simulations reveal that domain wall sliding dominates over spin tilting, where the phase delay of the domain wall motion with respect to the driving force impacts the emergent electric field. Our findings establish domain-wall dynamics as a platform for studying emergent electromagnetic fields and motivate further investigations on the coupled motion of magnetic solitons and conduction electrons. |
| title | Emergent electric field induced by dissipative sliding dynamics of domain walls in a Weyl magnet |
| topic | Mesoscale and Nanoscale Physics Materials Science Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2601.10638 |