在抗铁磁体NiPS3中非传统的马格农运输,由无热带旋转转过渡诱导
Peisen Yuan1, Beatriz Martín-García1,2, Evgeny Modin1
1CIC nanoGUNE BRTA, 20018 Donostia-San Sebastian, Basque Country, Spain.
Nano letters
|March 21, 2025
概括
我们在范德瓦尔斯物质NiPS3中观察到不寻常的磁运输,与旋转转过渡有关. 这种电气检测方法为磁绝缘体中的磁相转换提供了新的见解.
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
- 磁力学 磁力学 是一种
背景情况:
- 非局部磁运输是理解磁绝缘体 (MIs) 的关键.
- 预计反铁磁体中的旋转转变会影响磁运输,但研究很少,特别是范德瓦尔斯材料.
- 研究这些现象对于推进自旋电子和磁器件应用至关重要.
研究的目的:
- 为了证明和研究非传统的马格农运输驱动的异型旋转过渡.
- 为了探索范德瓦尔斯反铁磁体NiPS3.3中热驱动磁子的行为.
- 建立马格农电流的电探测,作为研究磁相变的工具.
主要方法:
- 利用非局部电压测量来检测热驱动的磁子.
- 应用平面内磁场来诱导NiPS3.3中的旋转转变.
- 分析了马格农信号与距离 (1/d^2) 的衰变,以确定主导的传输机制.
主要成果:
- 观察到非局部电压的急剧跃升,与NiPS3中磁场与b轴对齐时的内平面异型旋转转变相对应.
- 证明热驱动的马格农信号遵循1/d^2衰变,表明内在自旋塞贝克效应的主导作用.
- 在非局部设备几何学中,成功检测了电气上的马格农电流.
结论:
- 这项研究强调了NiPS3中非传统的磁运输,这是由其异性离子旋转转变驱动的.
- 磁电流的电探测是一种强大的方法,用于探测磁绝缘体中的磁相过渡.
- 这些发现有助于理解范德瓦尔斯材料中基于旋转的传输现象.
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