Semimagnetic (Cd,Mn)Te single quantum dots -: technological access and optical spectroscopy

被引：2

作者：

Kümmell, T ^{[1
]}

Bacher, G ^{[1
]}

Welsch, MK ^{[1
]}

Eisert, D ^{[1
]}

Forchel, A ^{[1
]}

König, B ^{[1
]}

Becker, C ^{[1
]}

Ossau, W ^{[1
]}

Landwehr, G ^{[1
]}

机构：

[1] Univ Wurzburg, D-97074 Wurzburg, Germany

来源：

JOURNAL OF CRYSTAL GROWTH | 2000年 / 214卷

关键词：

CdMnTe; single quantum dots; focused ion beam lithography;

D O I：

10.1016/S0022-0248(00)00052-X

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

An alternative technological approach for the realization of(Cd,Mn)Te nanostructures is presented. Focused ion beam lithography and subsequent thermal annealing are used for a lateral modulation of the bandgap, allowing both, the realization of quantum wires and quantum dots with adjustable size and a well-defined lateral potential. Due to the high quantum efficiency of the buried nanostructures. photoluminescence spectroscopy even on single quantum dots becomes accessible, allowing an experimental insight on optical transitions in three-dimensionally confined semimagnetic structures. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：150 / 153

页数：4

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