抛物量子线中束缚磁极化子的自旋效应  

The Spin Effect of Bound magnetopolaron in Parabolic Quantum Wires

作　　者：冯立芹[1] 杨杨[1] 丁朝华[1] FENG Liqin;YANG Yang;DING Zhaohua(College of Physics and Electronic Information, Inner Mongolia University for Nationalites , Tongliao , Inner Mongolia, 028043, CH)

机构地区：[1]内蒙古民族大学物理与电子信息学院,内蒙古通辽028043

出　　处：《低温物理学报》2018年第2期18-21,共4页Low Temperature Physical Letters

基　　金：国家自然科学基金(11464033)资助的课题

摘　　要：利用Tokuda改进的线性组合算符和幺正变换的方法,本文研究在抛物势作用下,同时考虑电子与LO声子强相互作用情况下,自旋对量子线中束缚磁极化子特性的影响.对氯化铷晶体所作的数值计算表明:由于自旋的存在,抛物量子线中束缚磁极化子的基态能量曲线分裂为自旋向上和向下的两条分裂能,并随着受限强度增大而增大;基态能量是振动频率的减函数.束缚磁极化子的振动频率随着库仑束缚势、受限强度和回旋频率的增强逐渐增大.With the use of linear combination operator and unitary transformation methods, this paper studied the influences of spin on properties of strong-coupling bound magnetopolaron in parabolic quantum wires. Numerical calculations show that the curves of the bound magnetopolaron＇s the ground state energy splits into two energy which are spin up and spin down energy and the vibration frequency increases as Coulomb bound potential enhancing, while it will increase with increasing confinement strength and the cyclotron frequency of the magnetic field.

关 键 词：量子线 束缚磁极化子 自旋效应 

分 类 号：O471.1[理学—半导体物理]