Dilute magnetism in Zn1-xMnxTe nanocrystals grown in a glass template

被引：21

作者：

Dantas, Noelio Oliveira ^{[1
]}

Silva, Alessandra dos Santos ^{[1
]}

Feria Ayta, Walter Elias ^{[1
]}

da Silva, Sebastiao William ^{[2
]}

de Morais, Paulo Cesar ^{[2
]}

Pereira-da-Silva, Marcelo A. ^{[3
,4
]}

Marques, Gilmar Eugenio ^{[5
]}

机构：

[1] Univ Fed Uberandia, Inst Fis, LNMIS, BR-38400902 Uberdandia, MG, Brazil

[2] Univ Brasilia, Inst Fis, Nucleo Fis Aplicada, BR-70910900 Brasilia, DF, Brazil

[3] Inst Fis Sao Carlos USP, BR-13560250 Sao Carlos, SP, Brazil

[4] Ctr Univ Cent Paulista UNICEP, BR-13563470 Sao Carlos, SP, Brazil

[5] Univ Fed Sao Carlos, Dept Fis, BR-13560905 Sao Carlos, SP, Brazil

来源：

CHEMICAL PHYSICS LETTERS | 2012年 / 541卷

基金：

巴西圣保罗研究基金会;

关键词：

PHOTOLUMINESCENCE; EPITAXY;

D O I：

10.1016/j.cplett.2012.05.031

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Zn1-xMnxTe dilute magnetic nanocrystals (NCs) were synthesized by fusion method in a glass template and annealed post-growth. Magnetism and quantum confinement of incorporated Mn-ions were confirmed by magnetic force microscopy (MFM), Raman scattering (RS) and electron paramagnetic resonance (EPR). A blueshift in the RS spectra were clear signatures of Mn2+ incorporation in the dot structure which were monitored as a function of increasing doping concentration, x. MFM images strongly indicated the formation of Zn1-xMnxTe magnetic phases in the glass system. The EPR spectra showed six lines associated to the S = 5/2 spin half filled d-state, characteristic of Mn2+ ions. (C) 2012 Published by Elsevier B.V.

引用

页码：44 / 48

页数：5

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