Fabrication and luminescence properties of self-assembled CdTe quantum dots embedded in an MnTe matrix

被引：3

作者：

Wojnar, P. ^{[1
,2
]}

Suffczynski, J. ^{[3
]}

Golnik, A. ^{[3
]}

Ebbens, A. ^{[4
]}

Woggon, U. ^{[4
]}

Karczewski, G. ^{[1
]}

Kossut, J. ^{[1
,5
]}

机构：

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

[2] Univ Grenoble 1, Inst Neel, CEA CNRS Grp Nanophys & Semicond, F-38054 Grenoble, France

[3] Warsaw Univ, Inst Expt Phys, PL-00681 Warsaw, Poland

[4] Univ Dortmund, D-44221 Dortmund, Germany

[5] ERATO, Semicond Spintron Project, PL-02668 Warsaw, Poland

来源：

PHYSICAL REVIEW B | 2009年 / 80卷 / 19期

关键词：

cadmium compounds; diffusion; excitons; II-VI semiconductors; molecular beam epitaxial growth; photoluminescence; semiconductor quantum dots; wide band gap semiconductors; Zeeman effect; OPTICAL-PROPERTIES; CD1-XMNXTE; PHOTOLUMINESCENCE; NANOSTRUCTURES; EMISSION; SURFACE; CDMNTE; GROWTH; MBE;

D O I：

10.1103/PhysRevB.80.195321

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The growth of self-assembled CdTe quantum dots embedded in cubic MnTe by molecular beam epitaxy is reported. The dots are forced to form despite a small lattice mismatch of 2.3% between the dot and the barrier materials. Their properties are studied by means of time integrated and time resolved photoluminescence at various temperatures and magnetic fields. We demonstrate a considerable diffusion of Mn ions from the MnTe barrier into nominally nonmagnetic CdTe quantum dot, which is manifested as an enhancement of their magneto-optical effects, such as the Zeeman splitting of excitonic levels in the dots.

引用

页数：6

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