Influence of growth temperature on structural and magnetic characterization of (In, Cr)As quantum dots

Chen L; Deng JJ; Lu J; Meng HJ; Xu PF; Zhao JH; Zhao JH Chinese Acad Sci Inst Semicond State Key Lab Superlattices & Microstruct POB 912 Beijing 100083 Peoples R China. E-mail Address: jhzhao@red.semi.ac.cn

Influence of growth temperature on structural and magnetic characterization of (In, Cr)As quantum dots

Authors: Chen L
Deng JJ
Lu J
Meng HJ
Xu PF
Zhao JH
Zhao JH Chinese Acad Sci Inst Semicond State Key Lab Superlattices & Microstruct POB 912 Beijing 100083 Peoples R China. E-mail Address: [email protected]
Publication date: 1 January 2009
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Abstract

(In, Cr)As ferromagnetic semiconductor quantum dots (QDs) were grown by molecular beam epitaxy on GaAs (001) substrates. The growth temperature effects on structure and magnetism of the QDs were investigated systematically. The Cr(2+)3d(4) states and quantum confined effect are assumed to play an important role in the room-temperature ferromagnetism of (In, Cr)As QDs. (C) 2009 Elsevier B.V. All rights reserved

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