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Título:
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An experiment-oriented analysis of 2D spin-glass dynamics: a twelve time-decades scaling study.
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Autores:
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Fernández Pérez, Luis Antonio ;
Marinari, E. ;
Martín Mayor, Víctor ;
Parisi, V. ;
Ruiz Lorenzo, J. J.
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Tipo de documento:
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texto impreso
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Editorial:
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IOP publishing ltd, 2019-05-31
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física
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Tipo = Artículo
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Resumen:
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Recent high precision experimental results on spin-glass films ask for a detailed understanding of the domain-growth dynamics of two-dimensional spin glasses. To achieve this goal, we numerically simulate the out-equilibrium dynamics of the Ising spin glass for a time that spans close to twelve orders of magnitude (from picoseconds to order of a second), in systems large enough to avoid finite-size effects. We find that the time-growth of the size of the glassy domains is excellently described by a single scaling function. A single time-scale tau (T) controls the dynamics. tau (T) diverges upon approaching the T = 0 critical point. The divergence of tau (T -> 0) is Arrhenius-like, with a barrier height that depends very mildly on temperature. The growth of this barrier-height is best described by critical dynamics. As a side product we obtain an impressive confirmation of universality of the equilibrium behavior of two-dimensional spin-glasses.
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En línea:
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https://eprints.ucm.es/id/eprint/55552/1/Mart%C3%ADnMayorV%20Libre%2053%20PREPRINT.pdf
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