EVIDENCE FOR A REDUCTION IN THE MOMENTUM MATRIX ELEMENT P2 DUE TO ALLOY DISORDER IN INAS1-XPX

被引：25

作者：

NICHOLAS, RJ

STRADLING, RA

RAMAGE, JC

机构：

[1] Clarendon Laboratory, Oxford OX1 3PU, Parks Road

来源：

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS | 1979年 / 12卷 / 09期

关键词：

D O I：

10.1088/0022-3719/12/9/007

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Measurements of cyclotron resonance and the infrared absorption in the region of the direct band gap are reported for the complete range of alloys InAs1-xPx. The experimentally determined values of the effective mass are found to be almost linear functions of the alloy composition. This is in contrast to the predictions of k.p theory which, using a linear interpolation of the momentum matrix element (P2) between the values for the two alloy constituents, predicts a strong bowing. The discrepancy is thought to arise from a reduction in P2 brought about by a mixing of the conduction and valence bands by random local disorder.

引用

页码：1641 / 1651

页数：11

共 38 条

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