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Numerical simulations of two dimensional magnetic domain patterns

E. A. Jagla
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Abstract

I show that a model for the interaction of magnetic domains that includes a short range ferromagnetic and a long range dipolar anti-ferromagnetic interaction reproduces very well many characteristic features of two-dimensional magnetic domain patterns. In particular bubble and stripe phases are obtained, along with polygonal and labyrinthine morphologies. In addition, two puzzling phenomena, namely the so called `memory effect' and the `topological melting' observed experimentally are also qualitatively described. Very similar phenomenology is found in the case in which the model is changed to be represented by the Swift-Hohenberg equation driven by an external orienting field.

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E. A. Jagla. 2004-08-30. Numerical simulations of two dimensional magnetic domain patterns. https://doi.org/10.1103/physreve.70.046204

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