非对称高斯势量子阱中弱耦合磁极化子的受限势的宽度效应  

The Width Effect of the Ground State Energy of the Weak-Coupling Magnetopolaron in an Asymmetrical Gaussian Potential Quantum Well

作　　者：白瑞锋[1] 付永洪 肖景林[1] BAI Rui-Feng;FU Yong-hong;XIAO Jing-lin(Institute of Condensed Matter Physics,Inner Mongolia University for Nationalities,Tongliao 028043,China;Senior Middle School of Pingzhou Coal Industry,Yuanbaoshan District Chifeng City,Chifeng 024076,China)

机构地区：[1]内蒙古民族大学凝聚态物理研究所,内蒙古通辽028043 [2]赤峰市元宝山区平庄煤业高级中学,内蒙古赤峰024076

出　　处：《内蒙古民族大学学报（自然科学版）》2018年第6期461-463,共3页Journal of Inner Mongolia Minzu University：Natural Sciences

基　　金：国家自然科学基金项目(11464033)

摘　　要：研究了非对称高斯受限势量子阱中弱耦合磁极化子基态能量的性质.应用线性组合算符和幺正变换方法,导出了弱耦合极化子基态能量随磁场的回旋频率和非对称高斯量子阱受限势的宽度的变化关系.以GaAs半导体为例,表明:回旋频率和受限势的宽度是表征高斯量子阱中弱耦合磁极化子基态能量性质的重要的物理量.The properties of the ground state energy of the weak-coupling magnetopolaron in a asymmetrical Gaussianpotential quantum well were studied. The relations of the ground state energy of weak-coupling polaron with the cyclotron frequency of magnetic field and the width of the asymmetrical Gaussian potential quantum well confinement potential were derived using an linear combination operator and unitary transformation methods. Selecting a GaAs semiconductor crystal, numerical calculations are performed and the results show that the cyclotron frequency of magnetic field and the width of the Ganssian confinement potential quantum well are important physical quantities for noticing the properties of the ground state energy of weak-coupling magnetopolaron.

关 键 词：非对称高斯势量子阱 磁场 线性组合算符 基态能量 

分 类 号：O469[理学—凝聚态物理]