磁性和晶体对称性控制在变磁体中旋转厅导电性的控制
Dameul Jeong1, Seoung-Hun Kang1,2,3, Young-Kyun Kwon1,2
1Department of Physics and Research Institute for Basic Sciences, Kyung Hee University, Seoul, 02447, South Korea.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|December 12, 2025
概括
变磁器通过将零净磁化与自旋分裂相结合,提供了新的自旋电子可能性. 这项研究揭示了晶体和磁对称性如何控制RuO2,CrSb和MnTe中的非传统的自旋霍尔导电性.
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
- 这就是Spintronics.
背景情况:
- 变磁体是一种具有独特自旋特性的材料类,包括没有净磁化的自旋分裂带.
- 这些材料为下一代自旋电子设备提供了新的机会,因为它们具有控制自旋传输的潜力.
研究的目的:
- 为了探索非传统的自旋霍尔导电性 (USHC) 在代表性的变磁体:RuO2,CrSb和MnTe.
- 阐明不同磁性和晶体对称度对它们的旋转霍尔反应的影响.
- 为了研究反转时间偶数和奇数元件在自旋霍尔导电性中的作用.
主要方法:
- 广泛的第一原则计算被用来分析电子和自旋属性.
- 该研究研究了结构倾斜和磁轴方向对对称性特性的影响.
- 对RuO2,CrSb和MnTe进行了特定材料的分析.
主要成果:
- RuO2在倾斜几何学下显示微不足道的USHC,表明对称性投影可以模仿非常规的效果.
- CrSb和MnTe表现出强大的内在USHC,这是由于在没有结构倾斜的情况下,从轻松轴磁顺序的对称性减少.
- 时间逆转偶数和奇数组件之间的相互作用被证明对整体自旋霍尔导电性至关重要.
结论:
- 晶体和磁对称性是调节替代磁体中自旋霍尔反应的关键因素.
- 在零净矩材料中可调整的旋转配置为连贯和强大的旋转传输提供了有前途的平台.
- 这些发现为通过控制对称性来设计多功能自旋电子设备铺平了道路.
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