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Dynamic transition and Shapiro-step melting in a frustrated Josephson-junction array

Jong Soo Lim, M. Y. Choi, J. Choi, and Beom Jun Kim
Phys. Rev. B 69, 220504(R) – Published 18 June 2004

Abstract

We consider a two-dimensional fully frustrated Josephson-junction array driven by combined direct and alternating currents. Interplay between the mode locking phenomenon, manifested by giant Shapiro steps in the current–voltage characteristics, and the dynamic phase transition is investigated at finite temperatures. Melting of Shapiro steps due to thermal fluctuations is shown to be accompanied by the dynamic phase transition, the universality class of which is also discussed.

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  • Received 12 February 2004

DOI:https://doi.org/10.1103/PhysRevB.69.220504

©2004 American Physical Society

Authors & Affiliations

Jong Soo Lim1, M. Y. Choi1,2, J. Choi3, and Beom Jun Kim4

  • 1Department of Physics, Seoul National University, Seoul 151-747, Korea
  • 2Korea Institute for Advanced Study, Seoul 130-722, Korea
  • 3Department of Physics, Keimyung University, Daegu 704-701, Korea
  • 4Department of Molecular Science and Technology, Ajou University, Suwon 442-749, Korea

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Issue

Vol. 69, Iss. 22 — 1 June 2004

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