RESONANT ONE-ACOUSTIC-PHONON RAMAN-SCATTERING IN MULTIPLE QUANTUM-WELLS

被引：24

作者：

SAPEGA, VF

BELITSKY, VI

SHIELDS, AJ

RUF, T

CARDONA, M

PLOOG, K

机构：

[1] Max-Planck-Institut für Festkörperforschung, D-7000 Stuttgart

来源：

SOLID STATE COMMUNICATIONS | 1992年 / 84卷 / 11期

关键词：

D O I：

10.1016/0038-1098(92)90435-C

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Raman spectra of GaAs/AlxGa1-xAs MQW's were studied with high magnetic field applied along the growth axis. For photon energies resonant with the e1 - hh1 and e2 - hh2 intersubband transitions we observe a qualitatively different frequency-dependence of the intensity of the folded LA lines, as well as for the broad secondary emission background. Using a simple macroscopic model for the electron-phonon interaction, we demonstrate that this is due to the different symmetries of the well subbands involved in the scattering.

引用

页码：1039 / 1042

页数：4

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