Rashba效应对量子线中束缚磁极化子性质的影响  

The influence of Rashba effect on the properties of bound magnetopolaron in quantum wire

作　　者：丁朝华[1] 赵颖[1] 吴丽娜[1] 

机构地区：[1]内蒙古民族大学物理与电子信息学院

出　　处：《原子与分子物理学报》2015年第2期291-295,共5页Journal of Atomic and Molecular Physics

基　　金：国家自然科学基金(11304143);内蒙古自治区高校科研项目(NJZY12118);内蒙古自然科学基金(2013MS0807)

摘　　要：采用改进的线性组合算符和幺正变换相结合的方法研究了Rashba效应对抛物量子线中强耦合束缚磁极化子性质的影响.计算了抛物量子线中强耦合束缚磁极化子的有效质量和振动频率,对Rb Cl材料的数值计算结果表明:量子线中强耦合束缚磁极化子的振动频率随受限强度和回旋频率的增加而增大;有效质量与磁极化子的受限强度、回旋频率和电子面密度有关,在Rashba效应影响下有效质量随上述各量的变化曲线都发生了分裂.The influences of Rashba effect on the properties of strong -coupling bound magnetopolaron in quan-tum wire are studied by using the improved linear combination operator and the unitary transformation methods . The effective mass and the vibrational frequency are calculated .Numerical calculations for RbCl crystal are per-formed and the results show that the Rashba effect makes the effective mass of the bound magnetpolaron split into two branchs , whereas the vibration frequency λof polaron will increase with the increases of the confinement strength and the cyclotron frequency .

关 键 词：Rashba效应 量子线 磁极化子 有效质量 

分 类 号：O469[理学—凝聚态物理]