Magnetic properties of Co-Ni alloy nanoparticles prepared by the sol-gel technique

被引：24

作者：

Sangregorio, C. ^{[1
]}

de Julian Fernandez, C.

Battaglin, G.

De, G.

Gatteschi, D.

Mattei, G.

Mazzoldi, P.

机构：

[1] Univ Florence, INSTM, Dipartimento Chim, I-50019 Sesto Fiorentino, FI, Italy

[2] Univ Padua, INFM, Dipartimento Fis, I-35131 Padua, Italy

[3] Univ Venice, INFM, Dipartimento Chim Fis, I-30123 Venice, Italy

[4] Cent Glass & Ceram Res Inst 196, Kolkata 700032, W Bengal, India

来源：

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

关键词：

magnetic nanoparticle; alloy; ferromagnetic resonance; superparamagnetism;

D O I：

10.1016/j.jmmm.2004.01.062

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magnetic properties of Co, Ni and CoxNi(1-x) alloy nanoparticles with different composition (0 < x < 1), prepared by the sol-gel route, were investigated. ZFC and FC magnetization measurements show that the blocking temperature increases with the Co content, while a maximum in the anisotropy constant was found for x = 0.7. Room temperature FMR measurements, suggest that in samples with larger Co content (x >= 0.66) interparticle interactions play a relevant role in determining their magnetic properties. (C) 2004 Published by Elsevier B.V.

引用

页码：E1251 / E1252

页数：2