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Reversal modes in arrays of interacting magnetic Ni nanowires: Monte Carlo simulations and scaling technique

M. Bahiana, S. Allende, F. S. Amaral, D. Altbir

cond-mat.mtrl-sciarXiv:cond-mat/0610161

Abstract

The effect of dipolar interactions in hexagonal arrays of Ni nanowires has been investigated by means of Monte Carlo simulations combined with a scaling technique, which allows the investigation of the internal structure of the wires. A strong dependence of the coercivity and remanence on the distance between wires has been observed. At intermediate packing densities the coercivity exhibits a maximum, higher than the non-interacting value. This behavior, experimentally observed, has been explained on grounds of the interwire dipolar interactions. Also, different reversal modes of the magnetization have been identified.

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