Phase transitions of the frustrated bilayer spin one XY model

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dc.creatorAntônio Sérgio Teixeira Pires
dc.date.accessioned2023-06-14T12:59:25Z
dc.date.accessioned2025-09-08T23:02:46Z
dc.date.available2023-06-14T12:59:25Z
dc.date.issued2018
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.identifier.doihttps://doi.org/10.1016/j.jmmm.2017.12.099
dc.identifier.issn1873-4766
dc.identifier.urihttps://hdl.handle.net/1843/54914
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofJournal of Magnetism and Magnetic Materials
dc.rightsAcesso Restrito
dc.subjectAntiferromagnetismo
dc.subject.otherAntiferromagnet
dc.subject.otherXY model
dc.subject.otherBilayer
dc.titlePhase transitions of the frustrated bilayer spin one XY model
dc.typeArtigo de periódico
local.citation.epage320
local.citation.spage315
local.citation.volume452
local.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.
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE FÍSICA
local.publisher.initialsUFMG
local.url.externahttps://www.sciencedirect.com/science/article/pii/S0304885317330585

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