Frohlich electron-interface and -propagating optical phonon interactions in a wurtzite multi-shell cylindrical heterostructure

被引：17

作者：

Zhang, L ^{[1
]}

Shi, JJ

机构：

[1] Panyu Polytech, Dept Mech & Elect, Panyu 511483, Peoples R China

[2] Peking Univ, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China

[3] Peking Univ, Sch Phys, Beijing 100871, Peoples R China

来源：

SOLID STATE COMMUNICATIONS | 2006年 / 138卷 / 01期

基金：

中国国家自然科学基金;

关键词：

wurtzite multi-shell heterostructures; optical phonon modes; electron-phonon interactions;

D O I：

10.1016/j.ssc.2005.11.007

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Under the dielectric continuum model and Loudon's uniaxial crystal model, the polar optical phonon modes in a wurtzite multi-shell cylindrical heterostructure are analyzed and discussed. The analytical electrostatic potential functions are presented for all the five types of polar optical phonon modes including the interface optical (IO) modes, the propagating (PR) modes, the quasi-confined (QC) modes, the half-space-like (HSL) modes and the exactly confined (EC) modes. By adopting a transfer matrix method, the free IO and PR phonon fields and corresponding Frohlich electron -IO and -PR interaction Hamiltonians are obtained via the method of electrostatic potential expansion. The analytical formulas are universal and can be applied to single, double and some complex cylindrical wurtzite quantum systems. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：47 / 52

页数：6

共 41 条

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