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dc.creatorStrečka, Jozef-
dc.creatorRojas, Onofre-
dc.creatorSouza, S. M. de-
dc.date.accessioned2020-11-13T22:34:46Z-
dc.date.available2020-11-13T22:34:46Z-
dc.date.issued2012-01-02-
dc.identifier.citationSTREČKA, J.; ROJAS, O.; SOUZA, S. M. de. Spin-phonon coupling induced frustration in the exactly solved spin-1/2 Ising model on a decorated planar lattice. Physics Letters A, [S.l.], v. 376, n. 3, p. 197-202, Jan. 2012. DOI: 10.1016/j.physleta.2011.11.008.pt_BR
dc.identifier.urihttps://www.sciencedirect.com/science/article/abs/pii/S0375960111013478pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/45503-
dc.description.abstractSpin-1/2 Ising model with a spin-phonon coupling on decorated planar lattices partially amenable to lattice vibrations is examined using the decoration-iteration transformation and harmonic approximation. It is shown that the magnetoelastic coupling gives rise to an effective antiferromagnetic next-nearest-neighbour interaction, which competes with the nearest-neighbour interaction and is responsible for a frustration of decorating spins. A strong enough spin-phonon coupling consequently leads to an appearance of striking partially ordered and partially disordered phase, where a perfect antiferromagnetic alignment of nodal spins is accompanied with a complete disorder of decorating spins. Thermal dependences of the specific heat are explored in detail.pt_BR
dc.languageen_USpt_BR
dc.publisherElsevierpt_BR
dc.rightsrestrictAccesspt_BR
dc.sourcePhysics Letters Apt_BR
dc.subjectIsing modelpt_BR
dc.subjectSpin-phonon couplingpt_BR
dc.subjectSpin frustrationpt_BR
dc.subjectSpecific heatpt_BR
dc.subjectExact resultspt_BR
dc.titleSpin-phonon coupling induced frustration in the exactly solved spin-1/2 Ising model on a decorated planar latticept_BR
dc.typeArtigopt_BR
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