Structural and magnetic properties of iron particles in a copper matrix

Structural and magnetic properties of iron particles in a copper matrix

The structural and magnetic properties of Fe particles grown in a Cu matrix by annealing a precursor alloy of composition Cu sub 97 Fe sub 3 are discussed. Structural characterization suggests that all segregated Fe particles are BCC-type. However, AC susceptibility and hysteresis loops display shor...

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Veröffentlicht in:Journal of magnetism and magnetic materials 1998-09, Vol.203, p.120-122
Hauptverfasser: Batlle, X, Echer, C, Krishnan, K M, Hattink, B J, Labarta, A
Format: Artikel
Sprache:eng
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Zusammenfassung:The structural and magnetic properties of Fe particles grown in a Cu matrix by annealing a precursor alloy of composition Cu sub 97 Fe sub 3 are discussed. Structural characterization suggests that all segregated Fe particles are BCC-type. However, AC susceptibility and hysteresis loops display short-range antiferromagnetic correlations and a spin glass-like behavior. The former is analyzed in terms of the effects occurring at the particle surface, while the latter is associated with the Fe spins diluted in the Cu matrix.
ISSN:0304-8853