ELECTRON SPIN-POLARIZATION IN P-DOPED QUANTUM-WELLS

被引：6

作者：

FERREIRA, R

ROUSSIGNOL, P

ROLLAND, P

BASTARD, G

DELALANDE, C

VINATTIERI, A

WEIMANN, G

机构：

[1] UNIV FLORENCE,DIPARTIMENTO FIS,I-50125 FLORENCE,ITALY

[2] UNIV FLORENCE,LENS,I-50125 FLORENCE,ITALY

[3] TECH UNIV MUNICH,WALTER SCHOTTKY INST,W-8046 GARCHING,GERMANY

来源：

JOURNAL DE PHYSIQUE IV | 1993年 / 3卷 / C5期

关键词：

D O I：

10.1051/jp4:1993532

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study both theoretically and experimentally the luminescence in non-intentionally but heavily p-doped GaAs quantum wells of 55 and 150angstrom width. At T=2K the PL spectra under cw excitation present an excitonic peak and a broad acceptor band. Time-resolved optical pumping of the acceptor line allows us to measure the free electron spin relaxation time. We have investigated its temperature dependence in the 4-40K ran-e. The experimental findings are interpreted in the framework of the D'Yakonov-Perel' mechaniSm for the electron gas.

引用

页码：175 / 178

页数：4

共 9 条

[1] ELECTRONIC-PROPERTIES OF TWO-DIMENSIONAL SYSTEMS [J].