MODIFICATION OF VALENCE-BAND SYMMETRY AND AUGER THRESHOLD ENERGY IN BIAXIALLY COMPRESSED INAS1-XSBX

被引：21

作者：

KURTZ, SR

BIEFELD, RM

DAWSON, LR

机构：

[1] Sandia National Laboratories, Albuquerque

来源：

PHYSICAL REVIEW B | 1995年 / 51卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.51.7310

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Strained-layer superlattices (SLSs) with biaxially compressed InAs1-xSbx were characterized using magnetophotoluminescence and compared with unstrained InAs1-xSbx alloys. Holes in the SLS exhibited a decrease in effective mass, approaching that of the electrons. In the two-dimensional limit, a large increase in the Auger threshold energy accompanies this strain-induced change in SLS valence-band symmetry. Correspondingly, the activation energy for nonradiative recombination in the SLSs displayed a marked increase compared with that of the unstrained alloys. Strained-layer superlattices and alloy activation energies are in agreement with estimated Auger threshold energies. © 1995 The American Physical Society.

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页码：7310 / 7313

页数：4

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