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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/54916
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dc.creatorTalles Hoenes Pimentapt_BR
dc.creatorAntônio Sérgio Teixeira Pirespt_BR
dc.date.accessioned2023-06-14T13:14:10Z-
dc.date.available2023-06-14T13:14:10Z-
dc.date.issued2018-
dc.citation.volume465pt_BR
dc.citation.spage58pt_BR
dc.citation.epage63pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.jmmm.2018.05.065pt_BR
dc.identifier.issn1873-4766pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/54916-
dc.description.resumoWe study quantum phase transitions in the anisotropic Heisenberg model with a pseudodipolar interaction on the square lattice, at zero temperature, using the SU(3) Schwinger boson technique in a mean field approximation. We present the dispersion relation for several values of the parameters. When we take into account the effect of the next near neighbor interaction, the phase diagram, at zero temperature shows the existence of a region in the intermediate frustrated regime, even for zero anisotropy parameter, where the system is magnetically disordered. A prediction of our model is the existence of a finite gap in this region.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.subjectNematic phasept_BR
dc.subjectQuantum phase transitionpt_BR
dc.subject.otherAntiferromagnetismopt_BR
dc.subject.otherTransições de fasespt_BR
dc.titleNematic phase in the spin one two dimensional anisotropic antiferromagnetpt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.sciencedirect.com/science/article/pii/S030488531733620Xpt_BR
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