期刊
PHYSICAL REVIEW LETTERS
卷 117, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.117.036601
关键词
-
资金
- King Abdullah University of Science and Technology (KAUST)
Planar spin transport in disordered ultrathin magnetic bilayers comprising a ferromagnet and a normal metal (typically used for spin pumping, spin Seebeck and spin-orbit torque experiments) is investigated theoretically. Using a tight-binding model that puts the extrinsic spin Hall effect and spin swapping on equal footing, we show that the nature of spin-orbit coupled transport dramatically depends on the ratio between the layer thickness d and the mean free path lambda. While the spin Hall effect dominates in the diffusive limit (d >> lambda), spin swapping dominates in the Knudsen regime (d less than or similar to lambda). A remarkable consequence is that spin swapping induces a substantial fieldlike torque in the Knudsen regime.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据