Magnetic behavior of a ferroferrimagnetic ternary alloy ABρC1−ρ with a selective site disorder: Case study of a mixed-spin Ising model on a honeycomb lattice

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorTorrico, Jordana-
Autor(es): dc.creatorStrečka, Jozef-
Autor(es): dc.creatorSantos, Onofre Rojas-
Autor(es): dc.creatorSouza, Sergio Martins de-
Autor(es): dc.creatorLyra, Marcelo Leite-
Data de aceite: dc.date.accessioned2026-02-09T11:14:37Z-
Data de disponibilização: dc.date.available2026-02-09T11:14:37Z-
Data de envio: dc.date.issued2020-10-18-
Data de envio: dc.date.issued2020-10-18-
Data de envio: dc.date.issued2020-03-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/43444-
Fonte completa do material: dc.identifierhttps://journals.aps.org/pre/abstract/10.1103/PhysRevE.101.032104-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1136697-
Descrição: dc.descriptionPhase transitions, compensation phenomenon, and magnetization of a ferroferrimagnetic ternary alloy A B ρ C 1 − ρ composed of three different kinds of magnetic ions A , B , and C with the spin magnitudes 1/2, 1, and 3/2 are examined within the framework of a mixed-spin Ising model on a honeycomb lattice with a selective annealed site disorder on one of its two sublattices. It is supposed that the first sublattice of a bipartite honeycomb lattice is formed by the spin-1/2 magnetic ions, while the sites of the second sublattice are randomly occupied either by the spin-1 magnetic ions with a probability ρ or the spin-3/2 magnetic ions with a probability 1 − ρ , both being subject to a uniaxial single-ion anisotropy. The model under investigation can be exactly mapped into an effective spin-1/2 Ising model on a triangular lattice through the generalized star-triangle transformation. For a specific concentration of the spin-1 (spin-3/2) magnetic ions, it is shown that the ferroferrimagnetic version of the studied model may display a compensation temperature at which the total magnetization vanishes below a critical temperature. The critical temperature strikingly may also become independent of the concentration of the randomly mixed spin-1 and spin-3/2 magnetic ions for a specific value of a uniaxial single-ion anisotropy. The spontaneous magnetic order may be notably restored at finite temperatures through the order-by-disorder mechanism above a disordered ground state, which results in an anomalous temperature dependence of the total magnetization with double reentrant phase transitions.-
Idioma: dc.languageen-
Publicador: dc.publisherAmerican Physical Society-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourcePhysical Review E-
Palavras-chave: dc.subjectCritical phenomena-
Palavras-chave: dc.subjectMagnetic order-
Palavras-chave: dc.subjectPhase transitions-
Palavras-chave: dc.subjectIsing model-
Palavras-chave: dc.subjectFerromagnetismo e ferrimagnetismo-
Palavras-chave: dc.subjectOrdem magnética-
Palavras-chave: dc.subjectTransições de fase-
Palavras-chave: dc.subjectModelo de Ising-
Título: dc.titleMagnetic behavior of a ferroferrimagnetic ternary alloy ABρC1−ρ with a selective site disorder: Case study of a mixed-spin Ising model on a honeycomb lattice-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

Não existem arquivos associados a este item.