Magnetic properties of γ-Fe2O3 dispersed particles:: size and matrix effects

被引：18

作者：

Tronc, E

Noguès, M

Chanéac, C

Lucari, F

D'Orazio, F

Grenèche, JM

Jolivet, JP

Fiorani, D

Testa, AM

机构：

[1] Univ Paris 06, LCMC, UMR 7574, UPMC T54, F-75252 Paris 05, France

[2] UVSQ, CNRS, UMR 8634, LMOV, F-78035 Versailles, France

[3] Univ Aquila, Dipartimento Fis, I-67010 Coppito, Italy

[4] INFM, I-67010 Coppito, Italy

[5] Univ Maine, CNRS, UMR 6087, LPEC, F-72085 Le Mans, France

[6] CNR, ISM, I-00016 Rome, Italy

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 272卷

关键词：

magnemite; ferrites; hysteresis; surfaces; interfaces; anisotropy;

D O I：

10.1016/j.jmmm.2003.12.171

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Static properties (0-5.5 T, 2-300 K) of gamma-Fe2O3 5- and 9-nm particles trapped in a silica xerogel (Fe/Si = 0.01-0.44 mol/mol) give evidence of strains. Comparing with dispersions in a polyvinylic alcohol suggests that the temperature dependence of the coercivity could reflect an intrinsic interparticle interaction effect. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：1474 / 1475

页数：2

共 2 条

[1] Magnetic iron oxide-silica nanocomposites. Synthesis and characterization [J].