磁场对非对称高斯势量子阱中弱耦合极化子基态结合能的影响  

Effects of Magnetic Field on the Ground State Binding Energy of Weak Coupling Polaronin Asymmetrical Gaussian Potential Quantum Well

作　　者：苏莉 肖景林[2] SU Li;XIAO Jing-Lin(Electrical Engineering Department,Tongliao Vocational and Technical College,Tongliao 028000,China;Institute of Condensed Matter Physics,Inner Mongolia University for Nationalities,Tongliao 028043,China)

机构地区：[1]通辽职业技术学院机电工程学院,内蒙古通辽028000 [2]内蒙古民族大学凝聚态物理研究所,内蒙古通辽028043

出　　处：《内蒙古民族大学学报（自然科学版）》2018年第3期198-200,共3页Journal of Inner Mongolia Minzu University：Natural Sciences

基　　金：国家自然科学基金资助项目(11464033)

摘　　要：运用Huybrechts线性组合算符和L.L.P幺正变换方法研究了非对称高斯受限势量子阱中弱耦合极化子基态结合能的性质.导出了弱耦合极化子的基态结合能随磁场的回旋频率和非对称高斯量子阱受限势的宽度的依赖关系.选择GaAs半导体材料进行数值计算,所得结果证实:磁场的回旋频率和高斯量子阱受限势的宽度是表征非对称高斯量子阱中弱耦合极化子基态结合能性质的重要的物理量.Using Huybrechts＇ s linear combination operator and L. L. P. unitary transformation methods,the ground state binding energy of weak coupling polaron in an asymmetrical Gaussian potential quantum well（AGPQW）was studied. The relations between the ground state binding energy of weak-coupling polaron with the cyclotron frequency of magnetic field and the width of the Gaussian confinement potential quantum well were derived. Selecting Ga As semiconductor material,numerical calculations were performed and the results show that the cyclotron frequency of magnetic field and the width of the Gaussian confinement potential quantum well are important physical quantities to characterize the properties of the ground state binding energy of the weak coupling polaron in the AGPQW.

关 键 词：非对称高斯势量子阱 磁场 线性组合算符 基态结合能 

分 类 号：O469[理学—凝聚态物理]