Campo DC | Valor | Idioma |
dc.contributor.author | Lessa, J. C. | - |
dc.contributor.author | Andrade, Roberto Fernandes Silva | - |
dc.creator | Lessa, J. C. | - |
dc.creator | Andrade, Roberto Fernandes Silva | - |
dc.date.accessioned | 2013-11-16T11:58:33Z | - |
dc.date.available | 2013-11-16T11:58:33Z | - |
dc.date.issued | 2000 | - |
dc.identifier.issn | 1539-3755 | - |
dc.identifier.uri | http://repositorio.ufba.br/ri/handle/ri/13654 | - |
dc.description | p. 3083-3089 | pt_BR |
dc.description.abstract | The model of Blume-Capel on the Sierpinski gasket is investigated within the method of transfer matrices,
where the thermodynamic functions are obtained after the numerical iteration of a set of discrete maps. The
analysis of the T50 transition shows that, for antiferromagnetic coupling and a finite interval of self-energy
coefficient, the correlation length diverges as exp(Jef f /T), with superimposed log-periodic oscillations in terms
of the reduced temperature t5exp(2uJef fu/T). Both the period of oscillations and the effective interaction Je f f
depend on the strength of the actual coupling constants. In the antiferromagnetic regime, residual entropy is
found for three different values of the self-energy parameter. The variation of this parameter leads, in the case
of ferromagnetic coupling, to a more complex behavior for the correlation length than the already known
exp@exp(Jef f /T)# dependence observed for the Ising and Potts models. | pt_BR |
dc.language.iso | en | pt_BR |
dc.publisher | Physical Review E | pt_BR |
dc.source | 10.1103/PhysRevE.62.3083 | pt_BR |
dc.title | Log-periodic oscillations for a uniform spin model on a fractal | pt_BR |
dc.title.alternative | Physical Review E | pt_BR |
dc.type | Artigo de Periódico | pt_BR |
dc.description.localpub | Salvador | pt_BR |
dc.identifier.number | v. 62, n. 3 | pt_BR |
Aparece nas coleções: | Artigo Publicado em Periódico (FIS)
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