Saturated and Anisotropic Magnetostriction in an Altermagnet
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_ | 1866913172129054720 |
|---|---|
| author | Duan, Zhiyuan Xu, Qiyun Qin, Peixin Liu, Li Zhao, Guojian He, Yuzhou Tan, Xiaoyang Jiang, Sixu Li, Jingyu Wang, Xiaoning Zhang, Qinghua Duan, Wenhui Xu, Yong Meng, Ziang Tang, Peizhe Jiang, Chengbao Liu, Zhiqi |
| author_facet | Duan, Zhiyuan Xu, Qiyun Qin, Peixin Liu, Li Zhao, Guojian He, Yuzhou Tan, Xiaoyang Jiang, Sixu Li, Jingyu Wang, Xiaoning Zhang, Qinghua Duan, Wenhui Xu, Yong Meng, Ziang Tang, Peizhe Jiang, Chengbao Liu, Zhiqi |
| contents | Magnetostriction, a fundamental phenomenon bridging magnetism and mechanics, has enabled a broad spectrum of applications. For almost two centuries, it has been mainly investigated for ferromagnets. Regarding the magnetostriction of antiferromagnets (AFMs), limitedly known examples for both conventional collinear AFMs and noncollinear AFMs predominantly exhibit non-saturating magnetic-field dependence. Herein, we report an easily saturated magnetostriction effect in a prototypical altermagnet - MnTe, which is an emerging class of collinear AFMs with special crystal symmetries. For high-quality MnTe single crystals, the magnetostriction saturates under a moderate field of ~0.7 T with an intriguing two-fold-symmetry anisotropy. First-principles calculations reveal that the saturated and anisotropic magnetostriction originates from symmetry-allowed coupling between elastic strain and its Néel order parameter. These findings break the traditional wisdom on antiferromagnetic magnetostriction. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_30773 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Saturated and Anisotropic Magnetostriction in an Altermagnet Duan, Zhiyuan Xu, Qiyun Qin, Peixin Liu, Li Zhao, Guojian He, Yuzhou Tan, Xiaoyang Jiang, Sixu Li, Jingyu Wang, Xiaoning Zhang, Qinghua Duan, Wenhui Xu, Yong Meng, Ziang Tang, Peizhe Jiang, Chengbao Liu, Zhiqi Materials Science Mesoscale and Nanoscale Physics Applied Physics Magnetostriction, a fundamental phenomenon bridging magnetism and mechanics, has enabled a broad spectrum of applications. For almost two centuries, it has been mainly investigated for ferromagnets. Regarding the magnetostriction of antiferromagnets (AFMs), limitedly known examples for both conventional collinear AFMs and noncollinear AFMs predominantly exhibit non-saturating magnetic-field dependence. Herein, we report an easily saturated magnetostriction effect in a prototypical altermagnet - MnTe, which is an emerging class of collinear AFMs with special crystal symmetries. For high-quality MnTe single crystals, the magnetostriction saturates under a moderate field of ~0.7 T with an intriguing two-fold-symmetry anisotropy. First-principles calculations reveal that the saturated and anisotropic magnetostriction originates from symmetry-allowed coupling between elastic strain and its Néel order parameter. These findings break the traditional wisdom on antiferromagnetic magnetostriction. |
| title | Saturated and Anisotropic Magnetostriction in an Altermagnet |
| topic | Materials Science Mesoscale and Nanoscale Physics Applied Physics |
| url | https://arxiv.org/abs/2605.30773 |