J. Phys. IV France 7 (1997) C2-997-C2-998
Influence of the Structure in Magnetic Properties in Co-P Electrodeposited Amorphous AlloysA. García-Arribas1, M.L. Fdez-Gubieda2, J.M. Barandiarán1 and J. Herreros3
1 Departamento de Física, Universidad de Oviedo, Av. de Calvo Sotelo s/n., 33007 Oviedo, Spain
2 Departamento de Electricidad y Electrónica, Universidad del País Vasco, Apartado 644, 48080 Bilbao, Spain
3 Departamento de Física Aplicada II, Universidad del País Vasco, Apartado 644, 48080 Bilbao, Spain
The short range order of a series of Co100-xPx (17<x<26) amorphous alloys prepared by electrodeposition is studied by EXAFS. The structural parameters as coordination numbers and interatomic distances have been found to vary significantly with P concentration. This behaviour contrasts with that of Fe-P alloys where the environment of the Fe atoms does not change appreciably with composition. The structural differences between both systems are related with clear differences in the magnetic properties, most of all in the dependence on concentration of the Curie temperature.
© EDP Sciences 1997