Magneto-optical studies of excitons in Zn1-xCdxSe/ZnSe quantum wells

被引：39

作者：

Puls, J ^{[1
]}

Rossin, VV ^{[1
]}

Henneberger, F ^{[1
]}

Zimmermann, R ^{[1
]}

机构：

[1] MAX PLANCK ARBEITSGRP,D-10117 BERLIN,GERMANY

来源：

PHYSICAL REVIEW B | 1996年 / 54卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.54.4974

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetoabsorption on high-quality ZnxCd1-xSe/ZnSe multiple quantum wells grown by molecular-beam epitaxy is used to study systematically the major excitonic properties. The small inhomogeneous width of the exciton lines allows us to observe Landau levels arising from higher heavy-hole exciton transitions as well as to analyze in detail the spin splitting and diamagnetic shift of the ground state. The Schrodinger equation of magnetoexcitons is solved numerically to describe their magnetic-field behavior and to deduce the relevant excitonic and band parameters in dependence on the Cd content in the well. Anticrossing features at higher Landau levels and the magnetic-field dependence of the light-hole exciton ground-state energy signify a complex valence-band structure due to heavy-light hole coupling.

引用

页码：4974 / 4980

页数：7

共 31 条

[1] INTERBAND OPTICAL TRANSITIONS IN EXTREMELY ANISOTROPIC SEMICONDUCTORS .2. COEXISTENCE OF EXCITON AND LANDAU LEVELS [J].