磁场对CsI非对称Gaussian受限势量子阱中强耦合极化子的影响（英文）  

INFLUENCES OF MAGNETIC FIELD ON THE STRONG-COUPLING POLARON IN A CsI ASYMMETRICAL GAUSSIAN CONFINEMENT POTENTIAL QUANTUM WELL

作　　者：孙勇[1] 阿其夫 梅景红[1] 肖景林[1] 

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]通辽市产品质量计量检测所,内蒙古通辽028000

出　　处：《低温物理学报》2015年第5期370-375,共6页Low Temperature Physical Letters

基　　金：Project supported by the National Science Foundation of China(Grant Nos.11464033;11464034)~~

摘　　要：采用线性组合算符和幺正变换方法研究了磁场对非对称Gaussian受限势量子阱中强耦合极化子的振动频率、基态能量和基态结合能的影响.计算结果表明振动频率随磁场的回旋频率的增加而增大,基态能量的绝对值和基态结合能随回旋频率的增加而减少.振动频率是Gaussian受限势量子阱的范围的减函数,而基态能量的绝对值和基态结合能是其增函数.由此,我们得出磁场和Gaussian受限势量子阱的范围是研究非对称Gaussian受限势量子阱中磁极化子性质的重要因素.Influences of magnetic field on the vibrational frequency, the ground state energy and the ground state binding energy of the strong-coupling polaron in the asymmetrical Gaussian confinement potential quantum well （AGCPQW） are investigated by using linear combination operator and unitary transformation methods. It turns out that the vibrational frequency increases with increasing cyclotron frequency of the magnetic field, whereas the absolute value of the ground state energy and the ground state binding energy will decreases with increasing one. The vibrational frequency is a decreasing function of the range of the Gaussian confinement potential, whereas the absolute value of the ground state energy and the ground state binding energy are an increasing ones of it. It is shown that the range of the Gaussian confinement potentia and the magnetic field are important factors to the properties of the magnetopolaron in the AGCPQW.

关 键 词：强耦合极化子 非对称Gaussian受限势量子阱 线性组合算符 磁场 

分 类 号：O471.1[理学—半导体物理]