DOMAIN GROWTH IN COMPRESSIBLE 2D ISING MODELS UNDERGOING PHASE SEPARATION

S. J. Mitchell () and D. P. Landau ()
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S. J. Mitchell: The Center for Simulational Physics, University of Georgia, Athens, GA 30602-2451, USA;
D. P. Landau: The Center for Simulational Physics, University of Georgia, Athens, GA 30602-2451, USA;

International Journal of Modern Physics C (IJMPC), 2009, vol. 20, issue 09, 1325-1333

Abstract: High precision Monte Carlo simulations are used to study domain growth in a compressible two-dimensional spin-exchange Ising model with continuous particle positions and zero total magnetization. For mismatched systems, we measure significant deviations from the theoretically expected late-time domain growth,R(t) = A + Btnwithn = 1/3. For a compressible model with no mismatch, we measure only a slight deviation fromn = 1/3. Our results indicate that our current understanding of domain growth is incomplete.

Keywords: Ising model; compressible model; phase separation; domain growth; 75.40.Gb; 64.75.+g; 64.60.Cn; 61.25.Mv (search for similar items in EconPapers)
Date: 2009
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DOI: 10.1142/S0129183109014394

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