Strain Gradient Induced Skyrmion in a van der Waals Magnet by Wrinkling

Strain Gradient Induced Skyrmion in a van der Waals Magnet by Wrinkling

© 2025 Wiley‐VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 37(2025), 29 vom: 14. Juli, Seite e2501935
1. Verfasser: Jin, Shuaizhao (VerfasserIn)
Weitere Verfasser: Liu, Yujia, Deng, Zunyi, Wang, Tingjun, Xu, Shaoqing, Chen, Yichong, Jiang, Xingang, Liang, Chaobo, Hong, Jiawang, Cheong, Sang-Wook, Wang, Xueyun
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2025
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article magnetic domain skyrmion strain gradient wrinkle
Beschreibung
Zusammenfassung:© 2025 Wiley‐VCH GmbH.
Magnetic structures are profoundly influenced by mechanical deformation. In particular, strain has been employed to achieve the reconstruction of magnetic domains, paving a mechanical pathway to manipulate magnetic domains. However, experimentally applied strains typically exhibit non-uniform distributions. Therefore, how to distinguish the role of non-uniform strains (strain gradients) and uniform strains is crucial for understanding the mechanical manipulation of magnetic structures. Here, by directly comparing to strain tuning, it is revealed that strain gradient induced by mechanical wrinkles is critical for magnetic domain manipulation in van der Waals ferromagnet Fe3GaTe2. A ground-state labyrinthine domain transforms into a skyrmion state in the presence of an in-plane strain gradient. Additionally, an asymmetric evolutionary behavior of the magnetic domain occurs on both sides of wrinkle peaks. Theoretical simulations uncover that though opposite in-plane strain gradient hosts C2 rotational symmetry, this asymmetric domain evolution can be achieved through the coupling of perpendicular magnetic anisotropy and Dzyaloshinskii-Moriya interaction. The finding highlights the vital role of strain gradient in manipulating magnetic properties, and also offers a new mechanism for generating field-free skyrmion
Beschreibung:Date Revised 24.07.2025
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.202501935