在Pt/LSMO异构结构中,由界面磁态调节的角度依赖磁电阻
Ruikang Li1, Chao Jin1, Xingmo Zhang2
1Tianjin Key Laboratory of Low Dimensional Materials Physics and Processing Technology, School of Science, Tianjin University, Tianjin 300350, China. chaojin@tju.edu.cn.
Physical chemistry chemical physics : PCCP
|June 4, 2024
概括
调查/兰坦曼酸 (Pt/LSMO) 异构的研究揭示了各种磁阻效应. 这些效应源于界面磁态,旋转轨道合和Dzyaloshinskii-Moriya相互作用,增强电子散射.
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:
- 重金属和反铁磁材料之间的接口具有独特的物理特性.
- 兰石 (La0.35Sr0.65MnO3,LSMO) 是一种抗铁磁材料,其基本状态可以通过表轴应变和旋转轨道合来调节.
研究的目的:
- 为了研究/LSMO异构结构中的各种磁阻现象.
- 了解界面磁态对磁电阻的影响.
- 探索旋转轨道合和Dzyaloshinskii-Moriya相互作用在Pt/LSMO接口中的作用.
主要方法:
- 制造具有不同LSMO层厚度 (6-20nm) 的Pt/LSMO异构结构.
- 磁阻性质的表征.
- 对界面效应的分析,包括旋转轨道合和Dzyaloshinskii-Moriya相互作用.
主要成果:
- 在Pt/LSMO异构结构中观察到多样化的磁阻,受界面磁态的影响.
- 证明了在Pt和Dzyaloshinskii-Moriya相互作用中强大的自旋轨道合会增强电子散射,从而导致正磁阻.
- 在 Pt/LSMO (20 nm) 结构中通过界面磁态调节的介面角依赖磁电阻报告.
结论:
- 这项研究阐明了重金属和抗铁磁矿在接口上的复杂相互作用.
- 这些发现有助于理解接口旋转物理和开发新型旋转电子设备.
- 观察到的磁阻效应为通过接口工程控制磁性质提供了洞察力.
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