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Integrable anisotropic spin-ladder model

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dc.contributor.authorTonel, A. P.
dc.contributor.authorFoerster, A.
dc.contributor.authorLinks, J.
dc.contributor.authorMalvezzi, André Luiz [UNESP]
dc.contributor.institutionUniversidade Federal do Rio Grande do Sul (UFRGS)
dc.contributor.institutionUniv Queensland
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:28:41Z
dc.date.available2014-05-20T15:28:41Z
dc.date.issued2001-08-01
dc.description.abstractWe present an integrable spin-ladder model, which possesses a free parameter besides the rung coupling J. Wang's system based on the SU(4) symmetry can be obtained as a special case. The model is exactly solvable by means of the Bethe ansatz method. We determine the dependence on the anisotropy parameter of the phase transition between gapped and gapless spin excitations and present the phase diagram. Finally, we show that the model is a special case of a more general Hamiltonian with three free parameters.en
dc.description.affiliationUniv Fed Rio Grande Sul, Inst Fis, Porto Alegre, RS, Brazil
dc.description.affiliationUniv Queensland, Dept Math, Brisbane, Qld 4072, Australia
dc.description.affiliationUNESP, Dept Fis, Bauru, SP, Brazil
dc.description.affiliationUnespUNESP, Dept Fis, Bauru, SP, Brazil
dc.format.extent5
dc.identifierhttp://dx.doi.org/10.1103/PhysRevB.64.054420
dc.identifier.citationPhysical Review B. College Pk: American Physical Soc, v. 64, n. 5, 5 p., 2001.
dc.identifier.doi10.1103/PhysRevB.64.054420
dc.identifier.fileWOS000170267000056.pdf
dc.identifier.issn0163-1829
dc.identifier.lattes4459191234201599
dc.identifier.urihttp://hdl.handle.net/11449/38441
dc.identifier.wosWOS:000170267000056
dc.language.isoeng
dc.publisherAmerican Physical Soc
dc.relation.ispartofPhysical Review B
dc.relation.ispartofsjr1,176
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.titleIntegrable anisotropic spin-ladder modelen
dc.typeArtigo
dcterms.licensehttp://publish.aps.org/authors/transfer-of-copyright-agreement
dcterms.rightsHolderAmerican Physical Soc
dspace.entity.typePublication
unesp.author.lattes4459191234201599[4]
unesp.author.orcid0000-0001-6486-4164[2]
unesp.author.orcid0000-0003-1049-0616[3]
unesp.author.orcid0000-0002-3195-9551[4]
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Ciências, Baurupt
unesp.departmentFísica - FCpt

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