Corner wetting in a far-from-equilibrium magnetic growth model |
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Authors: | V?Manías J?Candia Email author" target="_blank">E V?AlbanoEmail author |
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Institution: | (1) IFLP, CONICET/Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Casilla de Correo 67, La Plata, 1900, Argentina;(2) INIFTA, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CONICET, Casilla de Correo 16, Sucursal 4, La Plata, 1900, Argentina |
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Abstract: | The irreversible growth of magnetic films is studied in three-dimensional
confined geometries of size L×L×M, where M≫L is the
growing direction. Competing surface magnetic fields, applied
to opposite corners of the growing system,
lead to the observation of a localization-delocalization
(weakly rounded) transition of the interface between domains of
up and down spins on the planes transverse to the growing direction.
This effective transition is the precursor of a true
far-from-equilibrium corner wetting transition that takes place in the
thermodynamic limit. The phenomenon is characterized
quantitatively by drawing a magnetic field-temperature phase diagram,
firstly for a confined sample of finite size, and then by extrapolating
results, obtained with samples of different size, to
the thermodynamic limit. The results of this work are a nonequilibrium
realization of analogous phenomena recently investigated in
equilibrium systems, such as corner wetting transitions in the Ising model. |
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Keywords: | |
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