极性晶体膜中束缚磁极化子的声子平均数与回旋共振频率的关系  

Variation of the Polaron average and cyclotron resonance frequency of the bound magnetopolaron in a polar slab

作　　者：王秀清[1] 

机构地区：[1]内蒙古民族大学物理与电子信息学院,通辽028043

出　　处：《原子与分子物理学报》2012年第3期507-510,共4页Journal of Atomic and Molecular Physics

基　　金：内蒙古高校研究项目(NJ10119)

摘　　要：采用改进的线性组合算符法和幺正变换方法,研究极性晶体膜中束缚磁极化子的声子平均数与回旋共振频率w_c的变化关系.得出束缚磁极化子的声子平均数由两部分组成:第一部分是由于电子-体LO声子相互作用所引起的;第二部分则是电子—SO声子相互作用引起的.而且当λ<20×10^(12)s^(-1)时,声子平均数随着回旋共振频率w_c的增加而迅速增加,这主要是由于磁场的加入使电子声子的相互作用增强而引起的.We studied the relationship between the polaron average and cyclotron resonsnce frequency co, of the bound Magnetopolaron in a polar slab by using the Huybrecht＇s linear combination operator and unitary transformations method. The polaron average was consists of two parts, one was e - LO, the other was e-SO. Taking KC1 as an example, the cyclotron resonance frequency ωc was increased with the variational parameter,l; The polaron average was increased rapidly with the cyclotron resonance fre- quency ωc when）, was under 20×1012 s-1. the reason was probably that the interactions was changed by the electrons and the phonons in a stable magnetic field.

关 键 词：束缚磁极化子 声子平均数 回旋共振频率 

分 类 号：O469[理学—凝聚态物理]