分数维方法研究有限深抛物量子阱中的极化子  

POLARON EFFECT IN FINITE PARABOLIC QUANTUM WELL: A FRACTIONAL-DIMENSIONAL SPACE APPROACH

作　　者：杨汉伟[1] 田强[1] 

机构地区：[1]北京师范大学物理学系,北京100875

出　　处：《北京师范大学学报（自然科学版）》2012年第3期244-246,共3页Journal of Beijing Normal University(Natural Science)

基　　金：国家自然科学基金资助项目(10574011;10974017);中央高校基本科研业务专项资金资助

摘　　要：采用分数维方法研究了有限深抛物量子阱中的极化子自陷能及其有效质量.得到在阱宽很小或很大时,极化子自陷能和有效质量趋向于三维体材料的情况;在量子阱分数维取极小值时,极化子的自陷能和有效质量取极大值.Energy and effective mass of polaron in a finite parabolic quantum well within the framework of fractional-dimensional space approach was studied.Self-trapped energy and effective mass of polaron approaches the 3D values for very narrow or wide well.When fractional dimension of the quantum well was at a minimum,self-trapped energy and effective mass of polaron was at a maximum.

关 键 词：极化子 有限深抛物量子阱 分数维 

分 类 号：O471.1[理学—半导体物理]