Effect of a magnetic field in an S=1 antiferromagnetic chain with single-ion anisotropy and alternating bonds with disorder

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniv Fed Amazonas-
Autor(es): dc.contributorUniversidade Federal de Santa Catarina (UFSC)-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorSalmon, Octavio D. R.-
Autor(es): dc.creatorNeto, Minos A.-
Autor(es): dc.creatorBranco, Nilton S.-
Autor(es): dc.creatorCotta, E. A.-
Autor(es): dc.creatorFonseca Filho, H. D.-
Autor(es): dc.creatorSilva, Jonathas N. [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:55:56Z-
Data de disponibilização: dc.date.available2022-02-22T00:55:56Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-05-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.jpcs.2021.109988-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/209290-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/209290-
Descrição: dc.descriptionthis study, we investigated the quantization of magnetization at low temperatures in a spin-1 antiferromagnetic chain with single-ion anisotropy by considering the quenched disorder in alternating bonds. Each spin i interacts with its nearest neighbors via J(i) and alpha J(i) couplings, where J(i) is considered to obey a Gaussian or Bernoulli probability distribution function, with width sigma. Zero temperature phase diagrams were obtained by minimizing the energy of the Hamiltonian. For finite temperatures, a transfer matrix technique was applied in order to treat the partition function. Consequently, the magnetization curve calculated by deriving the quenched average of the free energy exhibited interesting plateaus, which were modified when randomness was considered. Experimentally, these plateaus appear when some chain structures are subjected to a magnetic field.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFAPEAM-
Descrição: dc.descriptionUniv Fed Amazonas, Dept Fis, 3000 Japiim, BR-69077000 Manaus, Amazonas, Brazil-
Descrição: dc.descriptionUniv Fed Santa Catarina, Dept Fis, BR-88040900 Florianopolis, SC, Brazil-
Descrição: dc.descriptionUniv Fed Amazonas, Dept Fis, Opt Lab, 3000 Japiim, BR-69077000 Manaus, Amazonas, Brazil-
Descrição: dc.descriptionUniv Estadual Paulista, BR-14800901 Araraquara, SP, Brazil-
Descrição: dc.descriptionUniv Estadual Paulista, BR-14800901 Araraquara, SP, Brazil-
Descrição: dc.descriptionCNPq: 408787/2018-0-
Descrição: dc.descriptionCNPq: 306569/2018-3-
Descrição: dc.descriptionCNPq: 407462/2018-0-
Formato: dc.format10-
Idioma: dc.languageen-
Publicador: dc.publisherElsevier B.V.-
Relação: dc.relationJournal Of Physics And Chemistry Of Solids-
???dc.source???: dc.sourceWeb of Science-
Palavras-chave: dc.subjectLow-dimensional system-
Palavras-chave: dc.subjectSuper-lattice chain-
Palavras-chave: dc.subjectSingle-ion anisotropy-
Palavras-chave: dc.subjectMagnetization plateau-
Título: dc.titleEffect of a magnetic field in an S=1 antiferromagnetic chain with single-ion anisotropy and alternating bonds with disorder-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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