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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/55461
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dc.creatorAntônio Sérgio Teixeira Pirespt_BR
dc.date.accessioned2023-06-28T13:20:10Z-
dc.date.available2023-06-28T13:20:10Z-
dc.date.issued2021-
dc.citation.volume602pt_BR
dc.citation.spage1pt_BR
dc.citation.epage7pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.physb.2020.412490pt_BR
dc.identifier.issn1873-2135pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/55461-
dc.description.resumoHere we investigate topological magnon effects in a ferromagnetic checkerboard lattice, also known as planar pyrochlore, with a Dzyaloshinskii-Moriya interaction (DMI). The DMI breaks the time-reversal symmetry and leads to topological bands with nontrivial Chern numbers, which indicates the existence of edge state modes. We show that the model studied here can be treated as a two-band model, and we calculate the Berry curvature, the spin Hall conductivity, the spin Nernst coefficient, and the thermal Hall conductivity as a function of temperature. Measurements of these quantities can be used to detect finite Berry curvatures. We also analyze the effect of an applied magnetic field and take into account higher-order contributions responsible to anharmonic magnon effects. Our study complements others done in the honeycomb, kagome, Lieb, Shastry-Sutherland, and pyrochlore lattices.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.ispartofPhysica B: Condensed Matter-
dc.rightsAcesso Restritopt_BR
dc.subjectTopological insulatorspt_BR
dc.subjectCheckerboard latticept_BR
dc.subjectDzyaloshinskii-Moriya interactionpt_BR
dc.subject.otherIsoladores topológicospt_BR
dc.titleTopological magnons on the checkerboard latticept_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.sciencedirect.com/science/article/pii/S0921452620304907pt_BR
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