Electronic bandstructure of disordered superlattices

被引：8

作者：

Hutchings, DC ^{[1
]}

机构：

[1] Univ Glasgow, Dept Elect & Elect Engn, Glasgow G12 8QQ, Lanark, Scotland

来源：

SUPERLATTICES AND MICROSTRUCTURES | 1999年 / 26卷 / 03期

基金：

英国工程与自然科学研究理事会;

关键词：

quantum well disordering; bandstructure; k center dot p; superlattice;

D O I：

10.1006/spmi.1999.0775

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The disordering of semiconductor superlattices is analysed in the spatial Fourier domain. It is demonstrated that disordering is equivalent to suppressing the higher-order Fourier coefficients of the alloy profile. Two superlattice bandstructure algorithms are developed in the Fourier domain which allow the electronic envelope function and energy to be determined. The first employs the effective mass approximation. The second is a 14-band k . p which includes nonparabolicity, anisotropy and noncentrosymmetry which are particularly relevant in the determination of nonlinear optical coefficients. (C) 1999 Academic Press.

引用

页码：195 / 209

页数：15

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