Critical Behavior of an Ising Model with Aperiodic Interactions

dc.creator	Pinho S. T. R.
dc.creator	Haddad T. A. S.
dc.creator	Salinas S. R.
dc.date	1997
dc.date.accessioned	2013-05-29T22:15:11Z
dc.date.available	2013-05-29T22:15:11Z
dc.date.issued	2013-05-30
dc.identifier	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97331997000400021
dc.identifier	http://www.doaj.org/doaj?func=openurl&genre=article&issn=01039733&date=1997&volume=27&issue=4&spage=567
dc.identifier.uri	http://koha.mediu.edu.my:8181/jspui/handle/123456789/2318
dc.description	We write exact renormalization-group recursion relations for a ferromagnetic Ising model on the diamond hierarchical lattice with an aperiodic distribution of exchange interactions according to a class of generalized two-letter Fibonacci sequences. For small geometric fluctuations, the critical behavior is unchanged with respect to the uniform case. For large fluctuations, the uniform fixed point in the parameter space becomes fully unstable. We analyze some limiting cases, and propose a heuristic criterion to check the relevance of the fluctuations.
dc.publisher	Sociedade Brasileira de Física
dc.source	Brazilian Journal of Physics
dc.title	Critical Behavior of an Ising Model with Aperiodic Interactions

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