The role of the alloy structure in the magnetic behavior of granular systems
C. S. M. Bastos, M. Bahiana, W. C. Nunes, M. A. Novak, D. Altbir, P. Vargas, M. Knobel
Abstract
The effect of grain size, easy magnetization axis and anisotropy constant distributions in the irreversible magnetic behavior of granular alloys is considered. A simulated granular alloy is used to provide a realistic grain structure for the Monte Carlo simulation of the ZFC-FC curves. The effect of annealing and external field is also studied. The simulation curves are in good agreement with the FC and ZFC magnetization curves measured on melt spun Cu-Co ribbons.
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