Dynamic transition and resonance in current-driven arrays of Josephson junctions

Gun Sang Jeon, Jong Soo Lim, Hyun Jin Kim, M. Y. Choi

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

We consider a two-dimensional fully frustrated Josephson-junction array, which is driven uniformly by oscillating currents. As the temperature is lowered, there emerges a dynamic phase transition to an ordered state with a nonzero dynamic order parameter for small currents. The transition temperature decreases monotonically with the driving amplitude, approaching zero at a certain critical value of the amplitude. Above the critical value, the disordered phase and the dynamically ordered phase are observed to appear alternatively. The characteristic stochastic resonance behavior of the system is also examined, which reveals that the resonance behavior of odd and even harmonics can be different according to the zero-temperature state.

Original languageEnglish
Article number024511
Pages (from-to)245111-245117
Number of pages7
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume66
Issue number2
StatePublished - 1 Jul 2002

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