de Julian, C and Sangregorio, C and Mattei, G and Battaglin, G and Cattaruzza, E and Gonella, F and Lo Russo, S and D'Orazio, F and Lucari, F and De, G and Gatteschi, D and Mazzoldi, P (2001) Nanostructure and magnetic properties of CoNi-alloy-based nanoparticles dispersed in a silica matrix. Journal of Magnetism and Magnetic Materials, 226 (SI). 1912 -1914 . ISSN 0304-8853

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Abstract

A comparative study of the magnetic behavior of FCC alloy CoNi (1 : 1) nanoparticles, embedded in a silica matrix and prepared by the ion implantation and sol-gel techniques, is presented. The blocking temperature is related to the size distribution, and, at least for the ion-implanted samples, only an enhanced effective anisotropy explains the experimental results. The hysteretic behavior is explained in terms of the temperature dependence of the anisotropy and of the particle volume fraction that determines the dipolar interactions

Item Type:	Article
Additional Information:	International Conference on Magnetism Location: RECIFE, BRAZIL Date: AUG 06-11, 2000
Uncontrolled Keywords:	Nanoparticles; Alloys; Ion Implantation Method; Sol-gel
Subjects:	Processing Science
Divisions:	UNSPECIFIED
Depositing User:	Mrs Chandana Patra
Date Deposited:	14 Feb 2012 12:14
Last Modified:	27 Mar 2016 13:27
URI:	http://cgcri.csircentral.net/id/eprint/845

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