Materials Science Forum, Vol.373-3, 181-184, 2001
On the hysteretic magnetisation of granular magnetic systems at room temperature
The hysteretic magnetisation of melt-spun granular magnetic Cu(100-x)(Co,Ni)(x) alloys submitted to different anneals is studied at room temperature for a variety of vertex-field values. The experimental loops appear to be particularly well fitted by a recent theory taking into account the role of dipolar interaction among magnetic dipoles.