Indirect control of spin precession by electric field via spin-orbit coupling

被引：0
|
作者：
Li-Ping Yang
Chang-Pu Sun
机构：
[1] State Key Laboratory of Theoretical Physics,
[2] Institute of Theoretical Physics and University of the Chinese Academy of Sciences,undefined
[3] Synergetic Innovation Center of Quantum Information and Quantum Physics,undefined
[4] University of Science and Technology of China,undefined
[5] Beijing Computational Science Research Center,undefined
来源：
The European Physical Journal B | 2015年 / 88卷
关键词：
Mesoscopic and Nanoscale Systems;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Spin-orbit coupling (SOC) can mediate the electric-dipole spin resonance (EDSR) within an a.c. electric field. By applying a quantum linear coordinate transformation, we find that the essence of EDSR could be understood as a spin precession under an effective a.c. magnetic field induced by the SOC in the reference frame, which is following exactly the classical trajectory of this spin. Based on this observation, we find an upper limit for the spin-flipping speed in the EDSR-based control of spin. For two-dimensional case, the azimuthal dependence of the effective magnetic field can be used to measure the ratio of the Rashba and Dresselhaus SOC strengths.
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