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arXiv · 1611.04828

Coarsening and percolation in a disordered ferromagnet

Federico Corberi·Leticia F. Cugliandolo·Ferdinando Insalata·Marco Picco
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Abstract

By studying numerically the phase-ordering kinetics of a two-dimensional ferromagnetic Ising model with quenched disorder -- either random bonds or random fields -- we show that a critical percolation structure forms in an early stage and is then progressively compactified by the ensuing coarsening process. Results are compared with the non-disordered case, where a similar phenomenon is observed, and interpreted within a dynamical scaling framework.

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Federico Corberi, Leticia F. Cugliandolo, Ferdinando Insalata, Marco Picco. 2016-11-15. Coarsening and percolation in a disordered ferromagnet. https://doi.org/10.1103/physreve.95.022101

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