Magnetic properties of electrodeposited Fe-poor Fe-Cu alloys

AUTOR(ES)

Barthem, V.M.T.S., Noce, R.D., Macedo, W.A.A., Givord, D.

FONTE

Brazilian Journal of Physics

DATA DE PUBLICAÇÃO

2009-04

RESUMO

In Fe-Cu alloys prepared by pulsed electrodeposition, Fe clusters form directly within a non-magnetic Cu matrix. The clusters contain around 140 Fe atoms and are superparamagnetic at room temperature. Below 160 K, it is proposed that the clusters order into a so-called superferromagnetic arrangement. This behaviour is ascribed to the persistence of weak exchange interactions mediated by isolated Fe atoms dispersed within the non-magnetic Cu matrix.

Documentos Relacionados

• Surfactant-Assisted Preparation of FeCu Catalyst for Fischer-Tropsch Synthesis
• Mechanical Behavior of Electrodeposited Bulk Nanocrystalline Fe-Ni Alloys
• Magnetic and Electrical Properties of MnxCu1-xFe2O4 Ferrite
• Structural and chemical properties of ZnSe-Fe electrodeposited granular films
• Obtenção e evolução da fase icosaedral quasicristalina em ligas Al-Cu-Fe e Al-Cu-Fe-B por Melt-Spinnin