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 97Fe 3 are discussed. Structural characterization suggests that all segregated Fe particles are BCC-type. However, AC susceptibility and hysteresis loops display short-range a...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 1999, Vol.203 (1), p.120-122
Main Authors: Batlle, X., Echer, C., Krishnan, K.M., Hattink, B.J., Labarta, A.
Format: Article
Language:English
Subjects:
Antiferromagnetic correlations
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Domain effects, magnetization curves, and hysteresis
Domain walls and domain structure
Exact sciences and technology
Magnetic properties and materials
Phase segregation
Physics
Spin glass-like behavior
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Summary:The structural and magnetic properties of Fe particles grown in a Cu matrix by annealing a precursor alloy of composition Cu 97Fe 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
DOI:10.1016/S0304-8853(99)00208-5