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Title: Critical behavior at a dynamic vortex insulator-to-metal transition

An array of superconducting islands placed on a normal metal film offers a tunable realization of nanopatterned superconductivity. This system enables elucidating open questions concerning the nature of competing vortex states and phase transitions between them. A square array creates the egg crate potential in which magnetic field-induced vortices are frozen into a vortex insulator. We observe a vortex insulator-to-vortex metal transition driven by the applied electric current and determine critical exponents strikingly coinciding with those for thermodynamic liquid-gas transition. Lastly, our findings offer a comprehensive description of dynamic critical behavior and establish a deep connection between equilibrium and nonequilibrium phase transitions.
Authors:
 [1] ;  [2] ;  [3] ;  [3] ;  [3] ;  [4] ;  [3] ;  [3] ;  [5] ;  [6]
  1. Univ. of Twente, Enschede (Netherlands); Rome International Center for Materials Science Superstripes (RICMASS), Roma (Italy)
  2. Siberian Branch of the Russian Academy of Sciences, Novosibirsk (Russia); Novosibirsk State Univ., Novosibirsk (Russia); Argonne National Lab. (ANL), Argonne, IL (United States)
  3. Univ. of Twente, Enschede (Netherlands)
  4. Queen Mary Univ. of London, London (United Kingdom)
  5. Univ. of Twente, Enschede (Netherlands); Moscow Institute of Physics and Technology, Moscow District (Russia)
  6. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Grant/Contract Number:
AC02-06CH11357
Type:
Accepted Manuscript
Journal Name:
Science
Additional Journal Information:
Journal Volume: 349; Journal Issue: 6253; Journal ID: ISSN 0036-8075
Publisher:
AAAS
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); Materials Sciences and Engineering Division
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
OSTI Identifier:
1352822