Browsing by Author "Iglesias, JR"

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    Non-universality of phase separation in two-dimensional critical binary-fluid mixtures
    (1997) Goncalves, S; Martinez, G; Iglesias, JR
    The domain growth in the late-time regime of phase-separating two-dimensional A-B critical fluid mixtures is investigated with molecular-dynamics simulations. Growth exponents are found to depend not only on temperature, as was previously shown, but also on the particular pair interaction potential. We study this dependence for two different molecular pair potentials with reduced strength among unequal particles and discuss possible mechanisms for the coarsening process as a function of temperature. At the low-temperature quenching regime the phase separation shows percolating patterns not previously reported, where a sequential aggregation of clusters gives rise to a possible multi-scaling behaviour.