轨道拉什巴效应作为一个强大的轨道光电流平台
T Adamantopoulos1,2, M Merte1,2,3, D Go1,3
1Peter Grünberg Institut, Forschungszentrum Jülich and JARA, 52425 Jülich, Germany.
Physical review letters
|March 1, 2024
概括
激光脉冲通过轨道Rashba效应在缺乏反向对称性的材料中产生强大的轨道电流. 这项研究为潜在的应用推进了角度动量电流的光学生成.
科学领域:
- 凝聚物质物理学 凝聚物质物理学
- 磁传输现象 磁传输现象
- 光电学是指光电子产品.
背景情况:
- 轨道电流是磁传输中的一个重要概念.
- 破碎的反向对称性对于观察新型电子现象至关重要.
研究的目的:
- 为了展示激光诱导的轨道电流的产生.
- 探索轨道Rashba效应在光电流产生中的作用.
- 为了研究轨道和自旋电流之间的联系.
主要方法:
- 用了激光脉冲来产生电流.
- 雇佣的模型和第一原则计算.
- 由于轨道的Rashba效应,研究的系统的反向对称性被打破了.
主要成果:
- 使用激光脉冲产生大而强大的非相对论轨道电流.
- 轨道拉什巴效应和晶体场分裂介于光电流,没有自旋轨道相互作用.
- 非相对论轨道光流在相对论效应下转化为自旋光流.
结论:
- 轨道光电流为光学角动量产生电流提供了一个有前途的路线.
- 这些发现为旋转电子学和光电子学的新应用铺平了道路.
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