Degenerate and chiral states in the extended Heisenberg model on the kagome lattice

dc.creatorGómez Albarracín, Flavia Alejandra
dc.creatorPujol, Pierre
dc.date2018-03-23
dc.date2022-07-15T15:18:11Z
dc.date.accessioned2023-07-15T04:51:51Z
dc.date.available2023-07-15T04:51:51Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/139619
dc.identifierissn:2469-9950
dc.identifierissn:2469-9969
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7471172
dc.descriptionWe present a study of the low-temperature phases of the antiferromagnetic extended classical Heisenberg model on the kagome lattice, up to third-nearest neighbors. First, we focus on the degenerate lines in the boundaries of the well-known staggered chiral phases. These boundaries have either semiextensive or extensive degeneracy, and we discuss the partial selection of states by thermal fluctuations. Then, we study the model under an external magnetic field on these lines and in the staggered chiral phases. We pay particular attention to the highly frustrated point, where the three exchange couplings are equal. We show that this point can be mapped to a model with spin-liquid behavior and nonzero chirality. Finally, we explore the effect of Dzyaloshinskii-Moriya (DM) interactions in two ways: a homogeneous and a staggered DM interaction. In both cases, there is a rich low-temperature phase diagram, with different spontaneously broken symmetries and nontrivial chiral phases.
dc.descriptionInstituto de Física La Plata
dc.formatapplication/pdf
dc.languageen
dc.rightshttp://creativecommons.org/licenses/by/4.0/
dc.rightsCreative Commons Attribution 4.0 International (CC BY 4.0)
dc.subjectFísica
dc.subjectCiencias Exactas
dc.subjectantiferromagnetic extended classical Heisenberg model
dc.subjectstaggered chiral phases
dc.subjectthermal fluctuations
dc.titleDegenerate and chiral states in the extended Heisenberg model on the kagome lattice
dc.typeArticulo
dc.typePreprint


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