Anisotropic spin-splitting and spin-relaxation in asymmetric zinc blende semiconductor quantum structures -: art. no. 075322

被引:55
作者
Kainz, J [1 ]
Rössler, U
Winkler, R
机构
[1] Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany
[2] Inst Tech Phys 3, D-91058 Erlangen, Germany
来源
PHYSICAL REVIEW B | 2003年 / 68卷 / 07期
关键词
D O I
10.1103/PhysRevB.68.075322
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Spin relaxation due to the D'yakonov-Perel' mechanism is intimately related with the spin splitting of the electronic states. We determine the spin relaxation rates from anisotropic spin splittings of electron subbands in n-(001) zinc blende semiconductor quantum structures calculated self-consistently in the multiband envelope function approach. The giant anisotropy of spin relaxation rates found for different spin components in the (001) plane can be ascribed to the interplay between the bulk and quantum well inversion asymmetry. One of the in-plane relaxation rates may exhibit a striking nonmonotonous dependence on the carrier density.
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页数:6
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