Title:
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Domain growth in binary mixtures at low temperatures
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Author:
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Lacasta Palacio, Ana María; Hernández Machado, Aurora; Sancho, José M.; Toral Garcés, Raúl
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Other authors:
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Universitat de Barcelona |
Abstract:
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We have studied domain growth during spinodal decomposition at low temperatures. We have performed a numerical integration of the deterministic time-dependent Ginzburg-Landau equation with a variable, concentration-dependent diffusion coefficient. The form of the pair-correlation function and the structure function are independent of temperature but the dynamics is slower at low temperature. A crossover between interfacial diffusion and bulk diffusion mechanisms is observed in the behavior of the characteristic domain size. This effect is explained theoretically in terms of an equation of motion for the interface. |
Subject(s):
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-Transformacions de fase (Física estadística) -Temperatures baixes -Phase transformations (Statistical physics) -Low temperatures |
Rights:
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(c) The American Physical Society, 1992
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Document type:
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Article Article - Published version |
Published by:
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The American Physical Society
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