Chemical control of superparamagnetic properties of SnO2 diluted magnetic semiconductor

被引：6
作者：
Mounkachi, O. [1 ]
Salmani, E. [2 ]
El Moussaoui, H. [1 ]
Ez-Zahraouy, H. [2 ]
Hamedoun, M. [1 ]
Hlil, E. K. [3 ]
Benyoussef, A. [1 ,2 ]
机构：
[1] MAScIR, Inst Nanomat & Nanotechnol, Rabat, Morocco
[2] Univ Mohammed V Agdal, Fac Sci, CNRST URAC 12, LMPHE, Rabat, Morocco
[3] CNRS UJF, Inst Neel, F-38042 Grenoble, France
来源：
MATERIALS LETTERS | 2014年 / 134卷
关键词：
DMS; Superparamagnetic; SnO2; Ab initio; ROOM-TEMPERATURE; FERROMAGNETISM;
D O I：
10.1016/j.matlet.2014.07.104
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Structural, magnetic and electronic properties of Sn0.95Fe0.05O2, Sn0.90Mn0.05Fe0.05O2 and Sn0.90Cu0.05Fe0.05O2 nanoparticles synthesized by co precipitation technique are studied in detail with experiments and ab initio calculations. High blocking temperature is observed in Sn0.90Mn0.05Fe0.05O2 and Sn0.90Cu0.05Fe0.05O2 nanopaiticles. By ab intio calculation a direct correlation between the electron spin-orbital momentum (L-S) coupling and the superparamagnetic properties of SnO2 based diluted magnetic semiconductor was observed. Our results suggest that it is possible to control the superparamagnetic properties through chemical composition. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：272 / 275
页数：4
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