Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/55504
Full metadata record
DC FieldValueLanguage
dc.creatorPimenta, R. A.-
dc.creatorRojas, O.-
dc.creatorSouza, S. M. de-
dc.date.accessioned2022-11-16T12:56:37Z-
dc.date.available2022-11-16T12:56:37Z-
dc.date.issued2022-05-15-
dc.identifier.citationPIMENTA, R.A.; ROJAS, O.; SOUZA, S. M. de. Anomalous thermodynamics in a mixed spin-1/2 and spin-1 hexagonal nanowire system. Journal of Magnetism and Magnetic Materials, [S.l.], v. 550, p. 1-11, May 2022. DOI: 10.1016/j.jmmm.2022.169070.pt_BR
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0304885322000488pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/55504-
dc.description.abstractThe mixed spin-1/2 Ising model and spin-1 Blume–Capel model in an hexagonal nanowire structure under the presence of crystal field is considered. The free energy is obtained through the transfer matrix technique, which is solved numerically. Our main result lies in the presence of pseudo-transition in low temperature region near the ferrimagnetic/ferromagnetic boundary, due to the influence of a crystal field. The evidence of a pseudo-transition is observed in several quantities. Free energy first derivative quantities like entropy and internal energy show an abrupt but continuous jump, whereas quantities associated with second derivatives of the free energy like the specific heat exhibit a strong sharp peak, quite similar to a second order phase transition. We also investigate magnetization patterns and do not find evidence of spontaneous magnetization. Nevertheless, assuming a small magnetic field, we can induce a magnetization which resembles a spontaneous magnetization at a pseudo-critical temperature.pt_BR
dc.languageen_USpt_BR
dc.publisherElsevierpt_BR
dc.rightsrestrictAccesspt_BR
dc.sourceJournal of Magnetism and Magnetic Materialspt_BR
dc.subjectHexagonal nanowirept_BR
dc.subjectBlume-Capelpt_BR
dc.subjectIsingpt_BR
dc.subjectMixed-spinpt_BR
dc.subjectPseudo-transitionpt_BR
dc.titleAnomalous thermodynamics in a mixed spin-1/2 and spin-1 hexagonal nanowire systempt_BR
dc.typeArtigopt_BR
Appears in Collections:DCS - Artigos publicados em periódicos

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.