Critical temperature for first-order phase transitions in confined systems

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dc.contributor.authorLinhares, C. A.
dc.contributor.authorMalbouisson, A. P. C.
dc.contributor.authorMilla, Y. W. [UNESP]
dc.contributor.authorRoditi, I.
dc.contributor.institutionUniversidade do Estado do Rio de Janeiro (UERJ)
dc.contributor.institutionCentro Brasileiro de Pesquisas Físicas (CBPF)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T14:07:18Z
dc.date.available2014-05-20T14:07:18Z
dc.date.issued2007-12-01
dc.description.abstractWe consider the Euclidean D-dimensional -lambda vertical bar phi vertical bar(4)+eta vertical bar rho vertical bar(6) (lambda,eta > 0) model with d (d <= D) compactified dimensions. Introducing temperature by means of the Ginzburg-Landau prescription in the mass term of the Hamiltonian, this model can be interpreted as describing a first-order phase transition for a system in a region of the D-dimensional space, limited by d pairs of parallel planes, orthogonal to the coordinates axis x(1), x(2),..., x(d). The planes in each pair are separated by distances L-1, L-2, ... , L-d. We obtain an expression for the transition temperature as a function of the size of the system, T-c({L-i}), i = 1, 2, ..., d. For D = 3 we particularize this formula, taking L-1 = L-2 = ... = L-d = L for the physically interesting cases d = 1 (a film), d = 2 (an infinitely long wire having a square cross-section), and for d = 3 (a cube). For completeness, the corresponding formulas for second-order transitions are also presented. Comparison with experimental data for superconducting films and wires shows qualitative agreement with our theoretical expressions.en
dc.description.affiliationUniv Estado Rio de Janeiro, Inst Fis, BR-20559900 Rio de Janeiro, Brazil
dc.description.affiliationCtr Brasileiro Pesquisas Fis, BR-22290180 Rio de Janeiro, Brazil
dc.description.affiliationUniv Estadual Paulista, Inst Fis Teor IFT, BR-01405900 São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Fis Teor IFT, BR-01405900 São Paulo, Brazil
dc.format.extent353-362
dc.identifierhttp://dx.doi.org/10.1140/epjb/e2007-00355-4
dc.identifier.citationEuropean Physical Journal B. New York: Springer, v. 60, n. 3, p. 353-362, 2007.
dc.identifier.doi10.1140/epjb/e2007-00355-4
dc.identifier.issn1434-6028
dc.identifier.urihttp://hdl.handle.net/11449/23610
dc.identifier.wosWOS:000252224600009
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofEuropean Physical Journal B
dc.relation.ispartofjcr1.536
dc.relation.ispartofsjr0,430
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleCritical temperature for first-order phase transitions in confined systemsen
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer
unesp.author.orcid0000-0003-2363-5626[4]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Física Teórica (IFT), São Paulopt

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