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Magnetic properties of cobalt and manganese oxide spinel ceramics

Guillemet-Fritsch, Sophie and Tenailleau, Christophe and Bordeneuve, Hélène and Rousset, Abel Magnetic properties of cobalt and manganese oxide spinel ceramics. (2010) Advances in Science and Technology, vol. 67 . pp. 143-148. ISSN 1662-0356

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Official URL: http://dx.doi.org/10.4028/www.scientific.net/AST.67.143

Abstract

Magnetic susceptibility measurements, magnetization and neutron diffraction results at low temperature for cobalt and manganese oxide spinel ceramics are presented. The Curie temperature varies similarly with the sample composition in ceramics and powders. The experimental molar Curie constant variation is explained by the presence of Co2+, CoIII, Mn3+ and Mn4+, and possibly Co3+ in the octahedral sites for the cobalt rich phases. The magnetic moments of the cations in tetrahedral and octahedral sites are not collinear and the global magnetization is oriented in a third direction.

Item Type:Article
Additional Information:Thanks to Trans Tech Publications editor. The definitive version is available at http://www.ttp.net/ The original PDF of the article can be found at Advances in Science and Technology website : http://www.scientific.net/AST.67.143
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
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Deposited By:Leila Abdelouhab

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