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Mössbauer and high field magnetization studies of the solid solution CoFexAl2-xO4 |
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| Authors: | J. Aragonés A. Fert N. Ferrer M. C. Schmidt J. Tejada M. Font-Altaba |
| Affiliation: | 1. Depto Optica, Facultad de Física, Universidad de Barcelona, Barcelona-28, 645, Diagonal, Spain 2. Laboratoire de Physique des Solides, INSA, 31077, Toulouse Cedex, France 3. Depto Cristalografía, Facultad de Geología, Universidad de Barcelona, Barcelona-7, 585, Gran Vía, Spain |
| Abstract: | By means of paramagnetic Mössbauer spectra the cation distribution of the solid solution CoFe x Al2?x O4 with 0≦x≦1.5 has been determined. The existence of high field magnetic susceptibility at low temperature for samples with x≧0.4 has been interpreted in terms of non-collinear ferrimagnetic arrangements. Below the Neel temperature the spinel CoAl2O4 has a complex antiferromagnetic behavior. |
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