Effects of magnetic field on the Rashba spin–orbit interaction in an asymmetry quantum well

IF 1.6 4区 物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY
Shan Shuang, Lan Hong, Jun Ge, Da.-Quan Liu
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引用次数: 0

Abstract

The effects of a magnetic field on the Rashba spin–orbit interaction in an asymmetry quantum well is theoretically studied, and the expression of the ground state energy of the magnetopolaron is obtained within Pekar variational method. The ground state energy of the magnetopolaron splits into two branches due to the Rashba effect, and the energy splitting appears saturated state with the increase of the well width. Because the contribution of the magnetic field cyclotron resonance frequency to the Rashba spin–orbit splitting is a positive value, the energy splitting distance becomes larger as the magnetic field cyclotron resonance frequency increases. Due to the spin–orbit interaction, the energy splits at zero magnetic field. The total energy is reduced due to the existence of phonons. Therefore, the polaron state is more stable than the bare electron state, and the polaron energy splitting is more stable.

Abstract Image

磁场对不对称量子阱中拉什巴自旋轨道相互作用的影响
理论研究了磁场对非对称量子阱中拉什巴自旋轨道相互作用的影响,并用佩卡变分法得到了磁极子基态能的表达式。由于拉什巴效应,磁极子的基态能分裂成两个分支,且能量分裂随井宽的增加而呈现饱和状态。由于磁场回旋共振频率对拉什巴自旋轨道分裂的贡献为正值,能量分裂距离随着磁场回旋共振频率的增加而变大。由于自旋轨道相互作用,能量在零磁场时分裂。由于声子的存在,总能量降低了。因此,极子态比裸电子态更稳定,极子能量分裂也更稳定。
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来源期刊
Indian Journal of Physics
Indian Journal of Physics 物理-物理:综合
CiteScore
3.40
自引率
10.00%
发文量
275
审稿时长
3-8 weeks
期刊介绍: Indian Journal of Physics is a monthly research journal in English published by the Indian Association for the Cultivation of Sciences in collaboration with the Indian Physical Society. The journal publishes refereed papers covering current research in Physics in the following category: Astrophysics, Atmospheric and Space physics; Atomic & Molecular Physics; Biophysics; Condensed Matter & Materials Physics; General & Interdisciplinary Physics; Nonlinear dynamics & Complex Systems; Nuclear Physics; Optics and Spectroscopy; Particle Physics; Plasma Physics; Relativity & Cosmology; Statistical Physics.
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