Effective Mass of Strong-Coupling Bound Polaron in a Triangular Quantum Well Induced by Rashba Effect  

作　　者：ZHANG Hai-Rui XIAO Jing-Lin 

机构地区：[1]Department of Mathematics and Physics, Hebei Normal University of Science and Technology, Qinhuangdao 066004, China [2]College of Physics and Electronic Information, Inner Mongolia National University, Tongliao 028043, China

出　　处：《Communications in Theoretical Physics》2008年第10期995-998,共4页理论物理通讯（英文版）

基　　金：National Natural Science Foundation of China under Grant No.10347004

摘　　要：In this paper, on the basis of Huybrechts＇ strong-coupling polaron model, the Tokuda modified linearcombination operator method and the unitary transformation method are used to study the properties of the strongcoupling bound polaron considering the influence of Rashba effect, which is brought by the spin-orbit （SO） interaction, in the semiconductor triangular quantum well （TQW）. Numerical calculation on the RbCI TQW, as the example, is performed. The expressions for the effective mass of the polaron as a function of the vibration frequency, the velocity, the Coulomb bound potential and the electron areal density are derived. Numerical results show that the total effective mass of the polaron is composed of three parts. The interactions between the orbit and the spin with different directions have different effects on the effective mass of the bound polaron.

关 键 词：triangular quantum well SPINTRONICS effective mass Rashba SO interaction 

分 类 号：O44[理学—电磁学]