Título:
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Phase separation dynamics in a concetration gradient
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Autor/a:
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Lacasta Palacio, Ana María; Sancho, Jose Maria; Yeung, C.
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Otros autores:
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Universitat Politècnica de Catalunya. Departament de Física Aplicada; Universitat Politècnica de Catalunya. NOLIN - Física No-Lineal i Sistemes Fora de l'Equilibri |
Abstract:
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Phase separation dynamics with an initially nonuniform concentration are studied. Critical and off-critical behavior is observed simultaneously. A mechanism for an expanding phase-separated region is demonstrated and the time dependence of the concentration is determined. The final equilibrium state consists of a planar interface separating one phase from the other. The evolution to this state is characterized by an experimentally observable flux, j, crossing this interface. We find that j ~ t−2/3 if patterns are formed in the bulk and j ~ t−1/2 if the bulk remains homogeneous. The results are explained in terms of scaling arguments which are confirmed numerically. |
Abstract:
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Peer Reviewed |
Materia(s):
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-Àrees temàtiques de la UPC::Física::Física de l'estat sòlid -Condensed matter GEC -Nonlinear dynamics -Phase separation -Concentration gradients -Matèria condensada |
Derechos:
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Tipo de documento:
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Artículo - Borrador Artículo |
Editor:
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EDP Sciences
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