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dc.creatorTorrico, Jordana-
dc.creatorStrečka, Jozef-
dc.creatorSantos, Onofre Rojas-
dc.creatorSouza, Sergio Martins de-
dc.creatorLyra, Marcelo Leite-
dc.date.accessioned2020-10-19T20:55:33Z-
dc.date.available2020-10-19T20:55:33Z-
dc.date.issued2020-03-
dc.identifier.citationTORRICO, J. et al. 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. Physical Review E, [S. I.], v. 101, n. 3, 032104, Mar. 2020. DOI: 10.1103/PhysRevE.101.032104.pt_BR
dc.identifier.urihttps://journals.aps.org/pre/abstract/10.1103/PhysRevE.101.032104pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/43444-
dc.description.abstractPhase 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.pt_BR
dc.languageenpt_BR
dc.publisherAmerican Physical Societypt_BR
dc.rightsrestrictAccesspt_BR
dc.sourcePhysical Review Ept_BR
dc.subjectCritical phenomenapt_BR
dc.subjectMagnetic orderpt_BR
dc.subjectPhase transitionspt_BR
dc.subjectIsing modelpt_BR
dc.subjectFerromagnetismo e ferrimagnetismopt_BR
dc.subjectOrdem magnéticapt_BR
dc.subjectTransições de fasept_BR
dc.subjectModelo de Isingpt_BR
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 latticept_BR
dc.typeArtigopt_BR
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