ASSESSMENT OF COMPOSITIONAL DISORDER IN ALXGA1-XAS SUPERLATTICES FROM THE ANALYSIS OF RAMAN-SPECTRA

被引：7

作者：

MIGLIO, L ^{[1
]}

MOLTENI, C ^{[1
]}

BERNASCONI, M ^{[1
]}

机构：

[1] SCUOLA INT SUPER STUDI AVANZATI,I-34100 TRIESTE,ITALY

来源：

APPLIED PHYSICS LETTERS | 1991年 / 59卷 / 07期

关键词：

D O I：

10.1063/1.105343

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present the calculation of the Raman spectra in backscattering configuration for Al(x)Ga(1-x)As (001) superlattices and modulated alloys, based on the bond-charge-model dynamics, the average t-matrix approximation for compositional disorder and the bond polarizability model for the Raman tensor. The features of Raman spectra are shown to reflect the Al concentration profile along the growth axis, hence providing a valuable tool for compositional characterization of superlattices.

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页码：788 / 790

页数：3

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