在金属范德瓦尔斯磁铁中循环旋转顺序的应变控制
Kai Du1, Fei-Ting Huang1, Kasun Gamage2
1Rutgers Center for Emergent Materials and Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey, 08854, USA.
Advanced materials (Deerfield Beach, Fla.)
|June 26, 2023
概括
研究人员在金属Cr$_{1/3}$TaS$_{2}$中展示了磁自旋纹理的应变控制. 这项工作为低功耗电子设备开辟了新的可能性,通过通过应变操纵磁力,影响极化和Dzyaloshinskii-Moriya相互作用.
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:
- 磁场的应变控制为低功率电子设备提供了一条道路.
- 绝缘型多铁子通过极化和Dzyaloshinskii-Moriya相互作用 (DMI) 显示可调节的旋转顺序.
- 在有屏蔽偏振的金属系统中,对旋转顺序的应变操纵理解较少.
研究的目的:
- 为了研究金属范德瓦尔斯磁铁中循环旋转纹理的应变诱导调制.
- 探索金属系统中应变,电极化和DMI之间的关系.
- 用应变来证明对磁态和光学特性的可逆控制.
主要方法:
- 利用热诱导的双轴菌株来操纵环状旋转纹理的标志.
- 采用异热应用的单轴菌株来控制环状旋转纹理的波长.
- 研究了材料Cr$_{1/3}$TaS_{2}$,一个金属的范德瓦尔斯磁铁.
主要成果:
- 在金属Cr$_{1/3}$TaS$_{2}$中证明了循环旋转纹理的可逆应变控制.
- 展示了压力诱导的偏振和DMI调制,影响了旋转纹理.
- 在压力下,在低电流密度下观察到显著的反射率降低和域修改.
结论:
- 在金属材料中建立了电极化和环状旋转之间的直接联系.
- 介绍了一种新的方法,通过应变调整范德瓦尔斯金属中的磁纹和光学特性.
- 突出了下一代设备中压力工程磁性和光学功能的潜力.
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