Energy Spectrum and Anisotropic g-factor of Elliptic Quantum Dot
Energy Spectrum and Anisotropic g-factor of Elliptic Quantum Dot
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椭圆量子点的能谱和各向异性 g 因子
DOI：
10.1109/isas.2011.5960917
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
M.Eto
中科院分区：
文献类型：
--
作者：
T.Yokoyama;M.Eto
我们从理论上研究了存在强自旋轨道 (SO) 相互作用的椭圆量子点的能谱和各向异性 g 因子。通过施加磁场，可以解除量子点中克莱默能级的简并性。能级的分裂反映了通过 SO 相互作用的波函数，因此取决于磁场的方向。根据实验结果，我们发现 g 因子在很大程度上变得各向异性。各个级别的各向异性显着不同。
We theoretically examine the energy spectrum and anisotropic g-factor of an elliptic quantum dot in the presence of strong spin-orbit (SO) interaction. The Kramers' degeneracy of energy levels in the quantum dot is lifted by applying a magnetic field. The splitting of the levels reflects the wavefunctions through the SO interaction and hence depends on the direction of the magnetic field. We find that the g-factor becomes largely anisotropic, in accordance with experimental results. The anisotropy significantly differs from level to level.