边界附近的 Hanle 效应
介观与纳米尺度物理
2008-03-05 v1
摘要
Hanle 效应描述了由于磁场中的进动导致的自旋极化抑制。这是一种标准的自旋电子学工具,可用于获取自旋均匀生成的样品的自旋寿命。我们研究了当自旋由外在自旋霍尔效应在扩散样品边界处生成时的 Hanle 效应。我们表明,Hanle 曲线具有空间依赖性,并且由其半宽倒数给出的“表观”自旋寿命在边界附近较短,即使自旋弛豫率是均匀的。
引用
@article{arxiv.0707.3762,
title = {Hanle Effect near Boundaries},
author = {Hans-Andreas Engel},
journal= {arXiv preprint arXiv:0707.3762},
year = {2008}
}
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4 pages, 2 figures
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