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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/12033

Title: Nonequilibrium wetting transition in a nonthermal 2D Ising model
Authors: HOOYBERGHS, Jef
Indekeu, J. O.
Issue Date: 2011
Publisher: SPRINGER
Citation: EUROPEAN PHYSICAL JOURNAL B, 81(2). p. 155-163
Abstract: Nonequilibrium wetting transitions are observed in Monte Carlo simulations of a kinetic spin system in the absence of a detailed balance condition with respect to an energy functional. A nonthermal model is proposed starting from a two-dimensional Ising spin lattice at zero temperature with two boundaries subject to opposing surface fields. Local spin excitations are only allowed by absorbing an energy quantum (photon) below a cutoff energy E (c) . Local spin relaxation takes place by emitting a photon which leaves the lattice. Using Monte Carlo simulation nonequilibrium critical wetting transitions are observed as well as nonequilibrium first-order wetting phenomena, respectively in the absence or presence of absorbing states of the spin system. The transitions are identified from the behavior of the probability distribution of a suitably chosen order parameter that was proven useful for studying wetting in the (thermal) Ising model.
Notes: [Hooyberghs, J.] VITO, Flemish Inst Technol Res, B-2400 Mol, Belgium. [Indekeu, J. O.] Katholieke Univ Leuven, Inst Theoret Phys, B-3001 Louvain, Belgium. [Hooyberghs, J.] Hasselt Univ, Dept WNI, B-3590 Diepenbeek, Belgium. jef.hooyberghs@vito.be
URI: http://hdl.handle.net/1942/12033
DOI: 10.1140/epjb/e2011-20085-2
ISI #: 000291161100003
ISSN: 1434-6028
Category: A1
Type: Journal Contribution
Validation: ecoom, 2012
Appears in Collections: Research publications

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