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A magnetic study of magnetoresistive Cu-(SmCo5)-Fe heterogranular alloys

Domenii publicaţii > Fizica + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: Ovidiu Crisan, Le Breton JM, Jianu A, Maignan A, Nogues M, Teillet J, Filoti G

Editorial: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 234 (1), p.95-99, 2001.

Rezumat:

The magnetic interactions between the nanograins in heterogeneous granular Cu-(SmCo5)-Fe ribbons were evaluated with a classical mean field model to obtain the exchange coupling as well as the magnetic moment per nanoparticle. The samples were subjected to various thermal treatments and a significant magnetoresistive effect was obtained when the optimal annealing conditions had been achieved.

Cuvinte cheie: nanogranular ribbons; magnetoresistance; Cu-(SmCo5) Fe; magnetic interactions