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Rashba效应对抛物量子阱中极化子基态能的影响
单淑萍
0
(福建龙岩学院机电工程学院,364012)
摘要:
采用LLP变分法研究了抛物量子阱中极化子的Rashba效应,得到了极化子基态能量的表达式,并讨论了 半阱宽及波矢与基态能量之间的关系.结果显示,基态能量是半阱宽和电子G声子耦合强度的减函数,而是波矢的增 函数.由于Rashba效应基态能量零自旋轨道分裂成两支.
关键词:  Rashba效应  抛物量子阱  基态能量
DOI:
基金项目:福建省教育厅A类课题资助(编号:JA15488)资助的课题
Influence of Rashba Effect on the Ground State Energyof Polaronina Parabolic Quantum Well
SHAN Shuping
(College of Electromechanics,Fujian Longyan University)
Abstract:
The polaron Rashba effect in a parabolic quantum well is studied by using LLP variational method. The ground state energy expression of polaron is derived and the relations between the ground state energy with the half well-width and wave vector are discussed, respectively. The results show that the ground state energy is a decreasing function of the half well-width and the electron-phonon coupling strength. However, the ground state energy is an increasing function of the wave vector. Due to the Rashba effect, the ground state energy of zero spin-orbit splits into two branches.
Key words:  Rashba effect,Parabolic quantum well,Ground state energy

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