NONLINEAR ABSORPTION OF 2-DIMENSIONAL MAGNETOEXCITONS IN INXGA1-XAS/INYAL1-YAS QUANTUM-WELLS

被引：20

作者：

RAPPEN, T

SCHRODER, J

LEISSE, A

WEGENER, M

SCHAFER, W

SAUER, NJ

CHANG, TY

机构：

[1] FORSCHUNGSZENTRUM JULICH, FORSCHUNGSZENTRUM, HLRZ, W-5170 JULICH 1, GERMANY

[2] AT&T BELL LABS, HOLMDEL, NJ 07733 USA

来源：

PHYSICAL REVIEW B | 1991年 / 44卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.44.13093

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Applying a perpendicular magnetic field to a semiconductor quantum well results in a transition from a two-dimensional into a zero-dimensional system. The mutual interaction of the magnetoexciton levels is studied by populating the 1s magnetoexciton under steady-state conditions and measuring the related changes in absorption. We find redshifts of all energetically higher magnetoexcitons and a blueshift of the Is exciton due to repulsive exciton-exciton interaction. The experimental results are compared with solutions of the semiconductor Bloch equations. Good qualitative agreement is found.

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页码：13093 / 13096

页数：4

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