An investigation of structural and magnetic properties of the Nd16Co72-xRu xC11B coro-carbides
AUTOR(ES)
Paduani, C., Valcanover, J. A., Ardisson, J. D., Yoshida, M. I.
FONTE
Brazilian Journal of Physics
DATA DE PUBLICAÇÃO
2008-06
RESUMO
Nd16Co72-xRu xC11B boro-carbides have been prepared by arc melting and studied by X-ray diffraction and magnetization measurements. X-ray diffraction results confirm that all the prepared alloys possess the tetragonal 2:14:1 (P4(2)/mmm) hard magnetic phase. The observed decrease of the magnetization and Curie temperature indicate the development of antiferromagnetic spin correlations with the increase of the Ru content. The combined addition of B and C is favorable to the formation and stabilization of the tetragonal phase in these compounds. At lower Ru contents the Curie temperature is higher than in the corresponding Co-based boride in spite of larger cell volumes.
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