Stripe-tetragonal first-order phase transition in ultrathin magnetic films
dc.contributor.author | Cannas, Sergio A. | pt_BR |
dc.contributor.author | Stariolo, Daniel Adrian | pt_BR |
dc.contributor.author | Tamarit, Francisco A. | pt_BR |
dc.date.accessioned | 2014-10-08T02:11:16Z | pt_BR |
dc.date.issued | 2004 | pt_BR |
dc.identifier.issn | 1098-0121 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/104263 | pt_BR |
dc.description.abstract | We analyze the nature of the phase transition from a smectic stripe phase to a tetragonal phase predicted in analytic studies by Abanov et al. [Phys. Rev. B 51, 1023 (1995)] and observed in experiments on ultrathin magnetic films by Vaterlaus et al. [Phys. Rev. Lett. 84, 2247 (2000)]. At variance with existent numerical evidence, we show results of Monte Carlo simulations on a two-dimensional model with competing exchange and dipolar interactions showing strong evidence that the transition is a weak first-order one, in agreement with the theoretical predictions of Abanov et al. Besides the numerical evidence, we give further support to the first-order nature of the transition analyzing a continuum version of the model and showing that it belongs to a large family of systems, or universality class, in which a first-order transition driven by fluctuations is expected on quite general grounds. | en |
dc.format.mimetype | application/pdf | |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Physical review. B, Condensed matter and materials physics. New York. Vol. 69, no. 9 (Mar. 2004), 092409 4p. | pt_BR |
dc.rights | Open Access | en |
dc.subject | Física | pt_BR |
dc.title | Stripe-tetragonal first-order phase transition in ultrathin magnetic films | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 000414392 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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