2-DIMENSIONAL EXCITON MAGNETIC POLARON IN CDTE CD1-XMNXTE QUANTUM-WELL STRUCTURES

被引：65

作者：

YAKOVLEV, DR ^{[1
]}

OSSAU, W ^{[1
]}

LANDWEHR, G ^{[1
]}

BICKNELLTASSIUS, RN ^{[1
]}

WAAG, A ^{[1
]}

SCHMEUSSER, S ^{[1
]}

URALTSEV, IN ^{[1
]}

机构：

[1] AF IOFFE PHYSICOTECHN INST,ST PETERSBURG 194021,USSR

来源：

SOLID STATE COMMUNICATIONS | 1992年 / 82卷 / 01期

关键词：

D O I：

10.1016/0038-1098(92)90401-T

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report the first investigation of two-dimensional magnetic polarons formed from excitons localized in very thin nonmagnetic CdTe quantum wells confined by Cd1-XMnXTe diluded-magnetic-semiconductor barriers. Analysis of the Stokes shift of the exciton luminescence peak under resonance excitation, which is a dramatically decreasing function of temperature and magnetic field, allows us to determine the magnetic polaron energy. The polaron energy measured as a function of quantum well width is found to be 25 meV in a 6 angstrom thick quantum well and to vanish in wells thicker than 30 angstrom.

引用

页码：29 / 32

页数：4