Low-temperature electron paramagnetic resonance in silver-iron oxide nanoparticles

被引：8
|
作者：
Goikolea, E.
Insausti, M.
Rojo, T.
Lezama, L.
Garitaonandia, J. S.
机构：
[1] Euskal Herriko Unibersitatea, UPV, EHU, Kimika Ezorganikoa Salia, Bilbao 48080, Spain
[2] Euskal Herriko Unibersitatea, UPV, EHU, Fis Aplikatua Saila 2, Bilbao 48080, Spain
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 2007年 / 353卷 / 8-10期
关键词：
nanoparticles; electron spin resonance;
D O I：
10.1016/j.jnoncrysol.2006.12.051
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Water in oil microemulsion technique has been used to obtain silver nanoparticles with a mean size of 7 nm surrounded by a matrix of 2 nm gamma-Fe2O3 nanoparticles. Magnetic measurements of the sample exhibit a cusp in the ZFC curve at 50 K, which corresponds to the blocking temperature. A detailed study of the thermal evolution of EPR spectra has been performed in the samples. It has been shown that the linewidth, the resonance field and the intensity of the EPR line show different behaviour near the blocking temperature. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：832 / 834
页数：3
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