Glassy dynamics of Josephon arrays on a dice lattice

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In this Letter we study the phase diagram and the approach to the equilibrium of Josephson junction arrays on a dice lattice for two different values of the magnetic frustration ($f=1/2,1/3$). In both cases the array unedrgoes a Berezinskii-Kosterlitz-Thouless like phase transition. For the fully frustrated array, $f=1/2$, we find evidence of a {\em glassy behavior} although the system has {\em no disorder}. For comparison we study dynamics of the array at a different value of frustration ($f=1/3$) and find no trace of glassy dynamics.
7 pages, 5 figures

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Superconductivity

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http://salesiana.dossiersoluciones.com/handle/123456789/18679

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0112307
 http://arxiv.org/abs/cond-mat/0112307

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arXiv