电场对量子阱中弱耦合磁极化子性质的影响  

Influence of Electric Field on Properties of Weak-coupling Magnetopolaron in Quantum Well

作　　者：单淑萍[1] 霍淑芬[1] 肖景林[1] 

机构地区：[1]内蒙古民族大学物理与机电学院,内蒙古通辽028043

出　　处：《内蒙古民族大学学报（自然科学版）》2007年第1期5-8,共4页Journal of Inner Mongolia Minzu University：Natural Sciences

基　　金：国家自然科学基金资助项目(10347004);内蒙古教育厅科研基金资助项目(NJ04059)

摘　　要：采用线性组合算符及幺正变换的方法研究了电场对量子阱中弱耦合磁极化子性质的影响.得出了磁极化子基态能量与振动频率、阱宽、外加电场强度之间的关系.数值计算表明:对于弱耦合磁极化子,振动频率随磁场强度的增大而增大;基态能量随着阱宽的减小而增加,并随着外加电场强度的增加而增加.In this paper we studied the influence of electric field on properties of weak- coupling magnetopolaron in quantum well by using linear - combination operator and unitary transformation method. For the weak - coupling, the relations of the ground state energy of the magnetopolaron with the coupling constant, the well width and the electric field strength are derived. Numerical calculations illustrated that the vibration frenquency λ, monotonously rises with the increasing of magnetic field strength. The ground state energy E0 increases with the decreasing of the well width and the electric field strength.

关 键 词：线性组合算符 磁极化子 量子阱 电场 

分 类 号：O469[理学—凝聚态物理]