Interfacial phase transitions in a far-from-equilibrium magnetic growth model

The irreversible growth of a magnetic film with spins having two possible orientations is studied in three-dimensional confined geometries of size L × L × M, where M ≫ L is the growing direction. A competing situation with two opposite short range surface magnetic fields H of the same magnitude is a...

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Detalles Bibliográficos
Autores principales: Candia, Julián Marcelo, Albano, Ezequiel Vicente
Formato: Articulo
Lenguaje:Inglés
Publicado: 2002
Materias:
Física
Magnetic material
Irreversible growth
Surface magnetic fields
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/129643
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-129643
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Magnetic material
Irreversible growth
Surface magnetic fields
spellingShingle Física
Magnetic material
Irreversible growth
Surface magnetic fields
Candia, Julián Marcelo
Albano, Ezequiel Vicente
Interfacial phase transitions in a far-from-equilibrium magnetic growth model
topic_facet Física
Magnetic material
Irreversible growth
Surface magnetic fields
description The irreversible growth of a magnetic film with spins having two possible orientations is studied in three-dimensional confined geometries of size L × L × M, where M ≫ L is the growing direction. A competing situation with two opposite short range surface magnetic fields H of the same magnitude is analyzed. Due to the antisymmetric condition considered, an interface between domains with spins having opposite orientations develops along the growing direction. Such an interface undergoes a localization-delocalization transition that is the precursor of a wetting transition in the thermodynamic limit, in qualitative agreement with observations performed under equilibrium conditions. However, in contrast to its equilibrium counterparts, the film also exhibits a growing interface that undergoes a concave-convex transition in the growth mode. The phase diagram on the H versus T plane is first obtained for a finite system, and exhibits eight different regions. Subsequently, the phase diagram corresponding to the thermodynamic limit is obtained by extrapolation. It is shown that in the latter only six regions remain. The relevant physical properties of all of these regions are discussed in detail.
format Articulo
Articulo
author Candia, Julián Marcelo
Albano, Ezequiel Vicente
author_facet Candia, Julián Marcelo
Albano, Ezequiel Vicente
author_sort Candia, Julián Marcelo
title Interfacial phase transitions in a far-from-equilibrium magnetic growth model
title_short Interfacial phase transitions in a far-from-equilibrium magnetic growth model
title_full Interfacial phase transitions in a far-from-equilibrium magnetic growth model
title_fullStr Interfacial phase transitions in a far-from-equilibrium magnetic growth model
title_full_unstemmed Interfacial phase transitions in a far-from-equilibrium magnetic growth model
title_sort interfacial phase transitions in a far-from-equilibrium magnetic growth model
publishDate 2002
url http://sedici.unlp.edu.ar/handle/10915/129643
work_keys_str_mv AT candiajulianmarcelo interfacialphasetransitionsinafarfromequilibriummagneticgrowthmodel
AT albanoezequielvicente interfacialphasetransitionsinafarfromequilibriummagneticgrowthmodel
bdutipo_str Repositorios
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