Superconducting State of a Disk with a Pentagonal/Hexagonal Trench/Barrier

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dc.contributor.authorBarba-Ortega, J.
dc.contributor.authorGonzalez, J. D.
dc.contributor.authorSardella, Edson [UNESP]
dc.contributor.institutionUniv Nacl Colombia
dc.contributor.institutionUniv Magdalena
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-12-03T13:09:13Z
dc.date.available2014-12-03T13:09:13Z
dc.date.issued2014-01-01
dc.description.abstractWe study the influence of a pentagonal (hexagonal) trench or barrier on the superconducting properties of a perforated disk. Effects associated to the pinning (anti-pinning) force of the central hole and the trench (barrier) and the interplay between the boundary conditions and the shape of the inner defects on the vortex configuration are studied for a thin disk. Also, we considered two cases for the value of the order parameter at the surface. The first one is psi (s) not equal 0; this is the usual supercondutor/vacuum interface, for which the deGennes parameter is b -> a. The second one is psi (s) =0, which is the surface of the sample in a complete normal state, simulated by b=0. The vorticity, Gibbs free energy, magnetic induction, supercurrent density, magnetization and Cooper pairs density as a function of the external magnetic field are calculated. We show that in our sample new phenomena are possible due to the competing interactions of the boundary and the geometry of the sample and the added geometry of the nanoengineered trench and barrier.en
dc.description.affiliationUniv Nacl Colombia, Dept Fis, Bogota, Colombia
dc.description.affiliationUniv Magdalena, Grp Teoria Mat Condensada, Santa Marta, Colombia
dc.description.affiliationUniv Estadual Paulista, Dept Fis, Sao Paulo, Brazil
dc.description.affiliationUniv Estadual Paulista, Inst Invest Meteorol, Sao Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Fis, Sao Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Invest Meteorol, Sao Paulo, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.format.extent96-103
dc.identifierhttp://dx.doi.org/10.1007/s10909-013-0921-7
dc.identifier.citationJournal Of Low Temperature Physics. New York: Springer/plenum Publishers, v. 174, n. 1-2, p. 96-103, 2014.
dc.identifier.doi10.1007/s10909-013-0921-7
dc.identifier.issn0022-2291
dc.identifier.lattes7799253646119889
dc.identifier.orcid0000-0001-7041-8136
dc.identifier.urihttp://hdl.handle.net/11449/112090
dc.identifier.wosWOS:000328837000008
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofJournal of Low Temperature Physics
dc.relation.ispartofjcr1.044
dc.relation.ispartofsjr0,471
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectGinzburg-Landauen
dc.subjectHexagonal trenchen
dc.subjectPentagonal barrieren
dc.subjectMesoscopicsen
dc.titleSuperconducting State of a Disk with a Pentagonal/Hexagonal Trench/Barrieren
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer
unesp.author.lattes7799253646119889[3]
unesp.author.orcid0000-0003-3415-1811[1]
unesp.author.orcid0000-0001-7041-8136[3]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências, Baurupt
unesp.departmentFísica - FCpt

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