OPTICAL ANISOTROPY IN INAS/ALSB SUPERLATTICES

被引：24

作者：

SANTOS, PV ^{[1
]}

ETCHEGOIN, P ^{[1
]}

CARDONA, M ^{[1
]}

BRAR, B ^{[1
]}

KROEMER, H ^{[1
]}

机构：

[1] UNIV CALIF SANTA BARBARA,DEPT ELECT & COMP ENGN,SANTA BARBARA,CA 93106

来源：

PHYSICAL REVIEW B | 1994年 / 50卷 / 12期

关键词：

D O I：

10.1103/PhysRevB.50.8746

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The optical anisotropy in the layer plane of (100) InAs/AlSb superlattices was investigated by ellipsometry and by reflection difference spectroscopy. The superlattices are anisotropic in the (100) plane with the dielectric function along the [011] and [011] axes differing by as much as similar to 5% in the energy range from 2 to 4 eV. The anisotropy in superlattices with either only AlAs or only InSb interface bonds is attributed to a reduction of the D-2d symmetry of a perfect structure due to differences between the interfaces where InAs is grown on AlSb and those where AlSb is deposited on InAs. Different mechanisms for the interface-related anisotropy are discussed.

引用

页码：8746 / 8754

页数：9

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