Mechanosynthesis of Fe-doped SnO2 nanoparticles

被引：25
|
作者：
Cabrera, A. F. [1 ]
Navarro, A. M. Mudarra
Torres, C. E. Rodriguez
Sanchez, F. H.
机构：
[1] Natl Univ La Plata, Fac Ciencias Exactas, Dept Fis, RA-1900 La Plata, Argentina
[2] Consejo Nacl Invest Cient & Tecn, IFLP, RA-1900 La Plata, Argentina
来源：
PHYSICA B-CONDENSED MATTER | 2007年 / 398卷 / 02期
关键词：
diluted magnetic semiconductors; mechanical alloying; magnetic properties; Mossbauer spectroscopy;
D O I：
10.1016/j.physb.2007.04.019
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Fe-doped nanosized SnO2, powders were prepared by mechanosynthesis using rutile SnO2 and hematite Fe2O3 Lis starting materials. The estimated grain size of the obtained rutile structure was between 10 and 20 nm. Mossbauer spectroscopy shows the presence of two interactions corresponding to 3+ and 2+ iron oxidation states with similar relative fractions. The magnetic measurements exhibit ferromagnetic- (FML) and superparamagnetic-like (SML) behavior. Evidence of a system of strongly interacting particles was found. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：215 / 218
页数：4
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