LUMINESCENCE POLARIZATION AND HOLE SPIN-RELAXATION IN QUANTUM-WELLS

被引：7

作者：

BARRAU, J

BACQUET, G

HASSEN, F

LAURET, N

AMAND, T

BROUSSEAU, M

机构：

[1] Laboratoire de Physique des Solides, CNRS, INSA, 31077 Toulouse Cédex, Avenue de Rangueil

来源：

SUPERLATTICES AND MICROSTRUCTURES | 1993年 / 14卷 / 01期

关键词：

D O I：

10.1006/spmi.1993.1099

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report the polarization spectra obtained from strained InxGa1-xAs/GaAs quantum wells. They reflect two important microscopic properties: first, the spin relaxation of the photo-excited holes is incomplete during recombination; second, the spin relaxation of the photo-generated carriers is not affected by the initial electron-hole correlations. We undertake a discussion concerning the relative probabilities of the different hole relaxation processes which leads us to suggest that the prime cause of spin depolarization of photo-generated holes out of k → = 0, is the intra-band hole/acoustic phonon scattering, via piezo-electric coupling. © 1993 Academic Press. All rights reserved.

引用

页码：27 / 37

页数：11

共 12 条

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