Critical behaviour and magnetic properties of A-B spinel Zn _xCu_(1-x)Fe_2O_4

Mounkachi O.; Hamedoun M.; Belaiche M.Benyoussef A.Sajieddine M.

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Critical behaviour and magnetic properties of A-B spinel Zn _xCu_(1-x)Fe_2O_4

机译：Critical behaviour and magnetic properties of A-B spinel Zn _xCu_(1-x)Fe_2O_4

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Polycrystalline Zn_(0.6)Cu_(0.4)Fe_2O_4 ferrites have been prepared using a solid-state reaction technique. Their structural and magnetic properties have been studied, using X-ray diffraction and Mssbauer and magnetic measurements. These results have been compared to a more general theoretical study, on ZnxCu_(1-x)Fe _2O_4, based on mean field theory and high-temperature series expansions (HTSE), and extrapolated with the Pad approximant method. The nearest neighbour super-exchange interactions for the intra-site and the inter-site of ZnxCu_(1-x)Fe_2O_4 spinel ferrites, in the range 0≤x≤1, have been computed using the probability approach, based on Mssbauer data. The Curie temperature TC is calculated as a function of Zn concentration. The theoretical results obtained are in good agreement with the experimental results obtained by magnetic measurements.

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来源
《Solid State Communications》 |2011年第13期|938-942|共5页
作者
Mounkachi O.; Hamedoun M.; Belaiche M.Benyoussef A.Sajieddine M.;
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作者单位

Institute of Nanomaterials and Nanotechnology, MAScIR, Rabat, Morocco;

Faculté des Sciences et Techniques, Université Moulay Slimane, Beni Mellal, Morocco;

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正文语种英语
中图分类固体物理学;
关键词
A. Ferrites; C. Magnetic measurements; C. Mssbauer spectra; D. Super-exchange interactions;

Critical behaviour and magnetic properties of A-B spinel Zn _xCu_(1-x)Fe_2O_4

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