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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/54914
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dc.creatorAntônio Sérgio Teixeira Pirespt_BR
dc.date.accessioned2023-06-14T12:59:25Z-
dc.date.available2023-06-14T12:59:25Z-
dc.date.issued2018-
dc.citation.volume452pt_BR
dc.citation.spage315pt_BR
dc.citation.epage320pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.jmmm.2017.12.099pt_BR
dc.identifier.issn1873-4766pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/54914-
dc.description.resumoIn this paper we use the SU(3) Schwinger boson representation, followed by a mean field decoupling, to study the disordered phases of the bilayer spin one quantum XY antiferromagnet on a square lattice with next near neighbor and a single ion anisotropy. The phase diagram at zero temperature is obtained. The ratio between the interlayer to the intralayer near neighbor J1 exchange interactions exhibits a quantum phase transition at a critical ratio that separates the small- η Nèel phase from the large η quantum disordered paramagnet. The effect of next near neighbor interactions is discussed. The Neel phase is studied using a self consistent harmonic approximation that takes into account topological effects.pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICX - DEPARTAMENTO DE FÍSICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofJournal of Magnetism and Magnetic Materials-
dc.rightsAcesso Restritopt_BR
dc.subjectAntiferromagnetpt_BR
dc.subjectXY modelpt_BR
dc.subjectBilayerpt_BR
dc.subject.otherAntiferromagnetismopt_BR
dc.titlePhase transitions of the frustrated bilayer spin one XY modelpt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.sciencedirect.com/science/article/pii/S0304885317330585pt_BR
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