Ferrihydrite antiferromagnetic nanoparticles in a sol-gel derived organic-inorganic matrix

被引:22
|
作者
Silva, NJO [1 ]
Amaral, VS
Carlos, LD
Bermudez, VD
机构
[1] Univ Aveiro, Dept Fis, P-3810193 Aveiro, Portugal
[2] Univ Aveiro, CICECO, P-3810193 Aveiro, Portugal
[3] Univ Tras Os Montes & Alto Douro, Dept Quim, P-5001911 Vila Real, Portugal
关键词
antiferromagnetic particles; hybrid materials; sol-gel processing; Langevin function;
D O I
10.1016/j.jmmm.2003.12.1303
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Magnetic properties of anti ferromagnetic ferrihydrite nanoparticles within a sol-gel derived organic-inorganic matrix, with sizes depending on iron loading are investigated. Above the irreversibility, the magnetization can be fitted with a Langevin function added to a linear term, yielding an estimation of the particles mean radius, comparable with previous X-ray diffraction and small-angle X-ray scattering results. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:1549 / 1550
页数:2
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