Pressure effect on the exchange interaction in the interface region of a CdTe/CdMnTe quantum-well structure

被引：3

作者：

Yokoi, H ^{[1
]}

Tozer, S

Kim, Y

Takeyama, S

Wojtowicz, T

Karczewski, G

Kossut, J

机构：

[1] Natl Inst Mat & Chem Res, Tsukuba, Ibaraki 3058565, Japan

[2] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA

[3] Univ Calif Los Alamos Natl Lab, Natl High Magnet Field Lab, Los Alamos, NM 87545 USA

[4] Chiba Univ, Fac Sci, Chiba 2638522, Japan

[5] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland

来源：

JOURNAL OF CRYSTAL GROWTH | 2000年 / 214卷 / 214期

基金：

日本科学技术振兴机构; 美国国家科学基金会;

关键词：

CdTe/CdMnTe single quantum well structure; interface; exciton; photoluminescence; sp-d exchange interaction; pressure effect;

D O I：

10.1016/S0022-0248(00)00123-8

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Exchange interaction of an exciton in a quantum well with magnetic ions in the interface region and pressure effect on the interaction are investigated for a 1.9 nm thick CdTe/Cd1-xMnxTe (x = 0.24) single quantum well (SQW). Photoluminescence has been measured at 4 K under magnetic fields to 60 T generated by a motor-generator driven long-pulsed magnet and hydrostatic pressures to 2.45 GPa produced in a diamond anvil cell (DAC) with a plastic body. An additional red shift is observed in a Zeeman shift for the SQW above 30 T. This structure has enabled us to evaluate the above mentioned interaction quite accurately and to find that pressure enhances it. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：428 / 431

页数：4

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