Nonexponential spin relaxation in magnetic fields in quantum wells with random spin-orbit coupling

被引：51

作者：

Glazov, MM ^{[1
]}

Sherman, EY

机构：

[1] Russian Acad Sci, AF Ioffe Physicotech Inst, St Petersburg 194021, Russia

[2] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada

[3] Univ Toronto, Inst Opt Sci, Toronto, ON M5S 1A7, Canada

来源：

PHYSICAL REVIEW B | 2005年 / 71卷 / 24期

关键词：

D O I：

10.1103/PhysRevB.71.241312

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigate the spin dynamics of electrons in quantum wells where the Rashba type of spin-orbit coupling is present in the form of random nanosize domains. We study the effect of magnetic field on the spin relaxation in these systems and show that the spatial randomness of spin-orbit coupling limits the minimum relaxation rate and leads to a Gaussian time decay of spin polarization due to memory effects. In this case the relaxation becomes faster with increase of the magnetic field in contrast to the well-known magnetic field suppression of spin relaxation.

引用

页数：4

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