Spin transport in inhomogeneous magnetic fields: A proposal for Stern-Gerlach-like experiments with conduction electrons
Spin transport in inhomogeneous magnetic fields: A proposal for Stern-Gerlach-like experiments with conduction electrons
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DOI：
10.1103/physrevb.66.024436
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发表时间：
2002-07-01
影响因子：
3.7
通讯作者：
Das Sarma, S
中科院分区：
文献类型：
--
作者：
Fabian, J;Das Sarma, S
在玻尔兹曼理论的框架下研究了空间非均匀磁场中的自旋动力学。在自旋弛豫开始之前，自旋向上和自旋向下的电子的斯特恩-格拉赫式分离发生在弹道和扩散机制中。瞬态动力学和光谱响应随时间变化的非均匀磁场的研究，并讨论了我们的研究结果可能的实验观察。
Spin dynamics in spatially inhomogeneous magnetic fields is studied within the framework of Boltzmann theory. Stern-Gerlach-like separation of spin up and spin down electrons occurs in ballistic and diffusive regimes, before spin relaxation sets in. Transient dynamics and spectral response to time-dependent inhomogeneous magnetic fields are investigated, and possible experimental observations of our findings are discussed.