嵌入的斯基尔米翁袋子在薄膜的奇拉尔磁体的磁铁
Luyan Yang1,2, Andrii S Savchenko3, Fengshan Zheng4
1Beijing Key Laboratory of Microstructure and Property of Advanced Materials, College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China.
Advanced materials (Deerfield Beach, Fla.)
|July 24, 2024
概括
这项研究揭示了磁性 skyrmion 袋在 FeGe 薄板中的显著稳定性,即使在零或反转磁场下. 还介绍了一种创建这些拓单元的新方法.
科学领域:
- 凝聚物质物理学 凝聚物质物理学
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
背景情况:
- 磁性 skyrmions 是类似粒子的拓旋转纹理,具有非平凡的属性.
- 研究主要集中在具有拓电荷 Q = -1.1 的 skyrmions 上.
- 理论模型预测了2D奇拉磁体中的 skyrmion 袋,即具有任意拓电荷的单子.
研究的目的:
- 通过实验证明斯基米翁袋的非凡稳定性.
- 为了研究嵌入在 skyrmion 格子中的 skyrmion 袋的稳定性.
- 开发一种用于核化嵌入式 skyrmion 袋的协议.
主要方法:
- 洛伦兹传输电子显微镜 (LTEM) 用于观察斯基米翁袋.
- 为了理论验证,进行了微磁模拟.
- 用B20型FeGe薄板作为材料平台.
主要成果:
- 在FeGe薄板中的Skyrmion袋具有非凡的稳定性.
- 嵌入式 skyrmion 袋保持在零或反转磁场的稳定性.
- 成功建立了一个用于核化嵌入式 skyrmion 袋的强大协议.
结论:
- 立方奇拉磁体的薄板是研究拓磁单子的强大平台.
- 这些发现证实了 skyrmion 袋的稳定性,扩大了对拓旋转纹理的理解.
- 开发的核化协议促进了对各种磁性单子的进一步研究.
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