Spin-canting and Magnetic Anisotropy in Ultrasmall CoFe2O4 Nanoparticles

Overview

Journal J Phys Chem B

Publisher American Chemical Society

Specialty Chemistry

Date 2008 Jul 2

PMID 18590326

Citations 10

Authors

D Peddis

M V Mansilla

S Morup

C Cannas

A Musinu

G Piccaluga

F DOrazio

F Lucari

D Fiorani

Affiliations

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Abstract

The magnetic properties of cobalt ferrite nanoparticles dispersed in a silica matrix in samples with different concentrations (5 and 10 wt% CoFe2O 4) and same particle size (3 nm) were studied by magnetization, DC and AC susceptibility, and Mossbauer spectroscopy measurements. The results indicate that the particles are very weakly interacting. The magnetic properties (saturation magnetization, anisotropy constant, and spin-canting) are discussed in relation to the cation distribution.

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