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dc.contributor.author
Candia, Julián Marcelo
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dc.contributor.author
Albano, Ezequiel Vicente
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dc.date.available
2020-01-07T18:22:02Z
dc.date.issued
2012-08
dc.identifier.citation
Candia, Julián Marcelo; Albano, Ezequiel Vicente; Nonequilibrium critical behavior of magnetic thin films grown in a temperature gradient; IOP Publishing; Journal of Statistical Mechanics: Theory and Experiment; 2012; 8; 8-2012; 8006-8028
dc.identifier.issn
1742-5468
dc.identifier.uri
http://hdl.handle.net/11336/93840
dc.description.abstract
We investigate the irreversible growth of (2+1)-dimensional magnetic thin films under the influence of a transverse temperature gradient, which is maintained by thermal baths across a direction perpendicular to the direction of growth. Therefore, different longitudinal layers grow at different temperatures between T 1 and T 2, where T 1 < T c hom < T 2 and T c hom = 0.69(1) is the critical temperature of films grown in homogeneous thermal baths. We find a far-from-equilibrium continuous order-disorder phase transition driven by the thermal bath gradient. We characterize this gradient-induced critical behavior by means of standard finite-size scaling procedures, which lead to the critical temperature T c=0.84(2) and a new universality class consistent with the set of critical exponents ν=3/2, γ=5/2, and β=1/4. In order to gain further insight into the effects of the temperature gradient, we also develop a bond model that captures the magnetic films growth dynamics. Our findings show that the interplay of geometry and thermal bath asymmetries leads to growth bond flux asymmetries and the onset of transverse ordering effects that explain qualitatively the shift observed in the critical temperature. The relevance of these mechanisms is further confirmed by a finite-size scaling analysis of the interface width, which shows that the growing sites of the system define a self-affine interface.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
IOP Publishing
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
CLASSICAL MONTE CARLO SIMULATIONS
dc.subject
FINITE-SIZE SCALING
dc.subject
IRREVERSIBLE AGGREGATION PHENOMENA (THEORY)
dc.subject
THIN FILM DEPOSITION (THEORY)
dc.subject.classification
Física de los Materiales Condensados
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dc.subject.classification
Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Nonequilibrium critical behavior of magnetic thin films grown in a temperature gradient
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-04-26T18:20:27Z
dc.journal.volume
2012
dc.journal.number
8
dc.journal.pagination
8006-8028
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Candia, Julián Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Albano, Ezequiel Vicente. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Journal of Statistical Mechanics: Theory and Experiment
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1088/1742-5468/2012/08/P08006
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1088/1742-5468/2012/08/P08006
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1207.2532
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