Interface profiles and in-plane anisotropy in common anion type-I Cd1-xMgxTe/CdTe/Cd1-xMnxTe heterostructures studied by reflectivity -: art. no. 045312

被引：32

作者：

Kudelski, A

Golnik, A

Gaj, JA

Kyrychenko, FV

Karczewski, G

Wojtowicz, T

Semenov, YG

Krebs, O

Voisin, P

机构：

[1] Univ Warsaw, Inst Expt Phys, PL-00681 Warsaw, Poland

[2] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland

[3] Ukrainian Acad Sci, Inst Semicond Phys, Kiev, Ukraine

[4] Ecole Normale Super, F-75005 Paris, France

来源：

PHYSICAL REVIEW B | 2001年 / 64卷 / 04期

关键词：

D O I：

10.1103/PhysRevB.64.045312

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on the experimental study of the in-plane optical anisotropy of CdTe-based quantum wells with asymmetric barriers made of (Cd,Mg)Te or (Cd,Mn)Te ternary compounds. We observe a significant linear polarization of the fundamental excitonic transitions along the (110) directions. The measured polarization rates are analyzed in the framework of an envelope function theory incorporating interface symmetry reduction for intermixed composition profiles. Fitting the experimental data produces inter-face anisotropy parameters that are larger than the ones predicted by a recent microscopic theory. The analysis shows an important influence of the interface profile asymmetry on the observed in-plane anisotropy.

引用

页数：6

共 11 条

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