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Formation kinetics of magnetic chains, rings, X's, and Y's

2006/03/09 by Peter D. Duncan, Duncan, Peter D., Philip J. Camp +1
Economics, Econometrics and Finance · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Complex Systems and Time Series Analysis #FOS: Physical sciences #Soft Condensed Matter (cond-mat.soft) #Theoretical and Computational Physics #cond-mat.soft

paper · pdf · doi:10.48550/arxiv.cond-mat/0603268

5 pages, 4 figures

arxiv created 2006/03/09 · openalex publication_date 2006/03/09 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The kinetics of aggregation in a monolayer of magnetic particles are studied using stochastic dynamics computer simulations. At low densities (<8% coverage) the equilibrium structure is made up of chains and rings; the primary mechanisms by which these motifs form are described. At higher densities (>15% coverage), we observe large transient concentrations of Y-shaped and X-shaped defects that ultimately give way to an extended, labyrinthine network. Our results suggest that a defect mechanism -- such as that proposed by Tlusty and Safran, Science 290, 1328 (2000) -- could drive a metastable phase separation in two dimensions.

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