Exactly solvable mixed-spin Ising-Heisenberg diamond chain with biquadratic interactions and single-ion anisotropy

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorRojas, Onofre-
Autor(es): dc.creatorSouza, S. M. de-
Autor(es): dc.creatorOhanyan, Vadim-
Autor(es): dc.creatorKhurshudyan, Martiros-
Data de aceite: dc.date.accessioned2026-02-09T12:34:30Z-
Data de disponibilização: dc.date.available2026-02-09T12:34:30Z-
Data de envio: dc.date.issued2020-11-12-
Data de envio: dc.date.issued2020-11-12-
Data de envio: dc.date.issued2011-03-29-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/45473-
Fonte completa do material: dc.identifierhttps://journals.aps.org/prb/abstract/10.1103/PhysRevB.83.094430-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1164037-
Descrição: dc.descriptionAn exactly solvable variant of a mixed spin-(1/2,1) Ising-Heisenberg diamond chain is considered. Vertical spin-1 dimers are taken as quantum ones with Heisenberg bilinear and biquadratic interactions and with single-ion anisotropy, while all interactions between spin-1 and spin-1/2 residing on the intermediate sites are taken in the Ising form. The detailed analysis of the T=0 ground-state phase diagram is presented. The phase diagrams have been shown to be rather rich, demonstrating a large variety of ground states: a saturated one, three ferrimagnetic ones with magnetization equal to 3/5, and another four ferrimagnetic ground states with magnetization equal to 1/5. There are also two frustrated macroscopically degenerated ground states that could exist at zero magnetic filed. Solving the model exactly within a classical transfer-matrix formalism we obtain exact expressions for all thermodynamic functions of the system. The thermodynamic properties of the model have been described exactly by exact calculation of the partition function within the direct classical transfer-matrix formalism.-
Idioma: dc.languageen-
Publicador: dc.publisherAmerican Physical Society (APS)-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourcePhysical Review B: covering condensed matter and materials physics-
Palavras-chave: dc.subjectIsing-Heisenberg diamond chain-
Palavras-chave: dc.subjectHeisenberg bilinear interactions-
Palavras-chave: dc.subjectHeisenberg biquadratic interactions-
Palavras-chave: dc.subjectFerrimagnetic-
Título: dc.titleExactly solvable mixed-spin Ising-Heisenberg diamond chain with biquadratic interactions and single-ion anisotropy-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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