Spin-Orbit Coupling in Two-Dimensional Electron and Hole Systems
Spin-Orbit Coupling in Two-Dimensional Electron and Hole Systems
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DOI：
10.1007/3-540-44946-9_18
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
R. Winkler;S. Papadakis;E. D. Poortere;M. Shayegan
中科院分区：
文献类型：
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作者：
R. Winkler;S. Papadakis;E. D. Poortere;M. Shayegan
在准二维电子和空穴系统中，自旋-轨道耦合强烈地影响着运动的轨道分量和自旋分量。在反转不对称系统中，即使在磁场dB=0时，这样的耦合也会导致自旋分裂。这通常是通过测量舒布尼科夫-德哈斯(SDH)振荡ATB>；0来分析的。然而，这样的耦合可以引起反常的SDH振荡，而不是简单地与b=0自旋分裂有关。各向异性轨道运动与自旋自由度的耦合导致了各向异性塞曼分裂，即使对于面内磁场的不同晶体方向也是如此。
In quasi two-dimensional electron and hole systems spin-orbit (SO) coupling strongly influences both the orbital and spin components of motion. In inversion asymmetric systems SO coupling causes a spin splitting even at magnetic fieldB= 0. Often this is analyzed by measuring the Shubnikov-de Haas (SdH) oscillations atB> 0. However, SO coupling can give rise to anomalous SdH oscillations that are not simply related to theB= 0 spin splitting. Coupling the anisotropic orbital motion to the spin degree of freedom results in an anisotropic Zeeman splitting even for different crystallographic directions of an in-plane magnetic field.