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Critical behavior at a dynamic vortex insulator-to-metal transition.

Vortices in a superconducting egg crateNear equilibrium phase transitions, physical systems that bear no resemblance to one another can behave in a very similar way. For example, thermodynamic functions follow the same scaling behavior in a magnetic transition as in the seemingly unrelated gas-liqui... Full description

Journal Title: Science (New York N.Y.), September 11, 2015, Vol.349(6253), pp.1202-1205
Main Author: Poccia, Nicola
Other Authors: Baturina, Tatyana I , Coneri, Francesco , Molenaar, Cor G , Wang, X Renshaw , Bianconi, Ginestra , Brinkman, Alexander , Hilgenkamp, Hans , Golubov, Alexander A , Vinokur, Valerii M
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: E-ISSN: 1095-9203 ; DOI: 10.1126/science.1260507
Link: http://search.proquest.com/docview/1711537269/?pq-origsite=primo
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title: Critical behavior at a dynamic vortex insulator-to-metal transition.
format: Article
creator:
  • Poccia, Nicola
  • Baturina, Tatyana I
  • Coneri, Francesco
  • Molenaar, Cor G
  • Wang, X Renshaw
  • Bianconi, Ginestra
  • Brinkman, Alexander
  • Hilgenkamp, Hans
  • Golubov, Alexander A
  • Vinokur, Valerii M
subjects:
  • Magnetic Fields
  • Metals
  • Electric Currents
  • Islands
  • Thermodynamics
  • Cadmium
  • Phase Transition
  • Scaling
  • General/Miscellaneous
ispartof: Science (New York, N.Y.), September 11, 2015, Vol.349(6253), pp.1202-1205
description: Vortices in a superconducting egg crateNear equilibrium phase transitions, physical systems that bear no resemblance to one another can behave in a very similar way. For example, thermodynamic functions follow the same scaling behavior in a magnetic transition as in the seemingly unrelated gas-liquid transition. Does such universality exist in nonequilibrium phase transitions? Poccia et al. fabricated a square array of superconducting islands on a metallic surface. They applied a magnetic field, which caused vortices to form in between the islands, and induced a transition from a state in which vortices were stuck to their positions to one where they were able to move. They observed the same scaling behavior that applies to some equilibrium transitions.Science, this issue p. 1202 An array of superconducting islands placed on a normal metal film offers a tunable realization of nanopatterned superconductivity. This system enables investigation of the nature of competing vortex states and phase transitions between them. A square array creates the eggcrate potential in which magnetic field-induced vortices are frozen into a vortex insulator. We observed a vortex insulator-vortex metal transition driven by the applied electric current and determined critical exponents that coincided with those for thermodynamic liquid-gas transition. Our findings offer a comprehensive description of dynamic critical behavior and establish a deep connection between equilibrium and nonequilibrium phase transitions.
language: eng
source:
identifier: E-ISSN: 1095-9203 ; DOI: 10.1126/science.1260507
fulltext: no_fulltext
issn:
  • 10959203
  • 1095-9203
url: Link


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titleCritical behavior at a dynamic vortex insulator-to-metal transition.
creatorPoccia, Nicola ; Baturina, Tatyana I ; Coneri, Francesco ; Molenaar, Cor G ; Wang, X Renshaw ; Bianconi, Ginestra ; Brinkman, Alexander ; Hilgenkamp, Hans ; Golubov, Alexander A ; Vinokur, Valerii M
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ispartofScience (New York, N.Y.), September 11, 2015, Vol.349(6253), pp.1202-1205
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descriptionVortices in a superconducting egg crateNear equilibrium phase transitions, physical systems that bear no resemblance to one another can behave in a very similar way. For example, thermodynamic functions follow the same scaling behavior in a magnetic transition as in the seemingly unrelated gas-liquid transition. Does such universality exist in nonequilibrium phase transitions? Poccia et al. fabricated a square array of superconducting islands on a metallic surface. They applied a magnetic field, which caused vortices to form in between the islands, and induced a transition from a state in which vortices were stuck to their positions to one where they were able to move. They observed the same scaling behavior that applies to some equilibrium transitions.Science, this issue p. 1202 An array of superconducting islands placed on a normal metal film offers a tunable realization of nanopatterned superconductivity. This system enables investigation of the nature of competing vortex states and phase transitions between them. A square array creates the eggcrate potential in which magnetic field-induced vortices are frozen into a vortex insulator. We observed a vortex insulator-vortex metal transition driven by the applied electric current and determined critical exponents that coincided with those for thermodynamic liquid-gas transition. Our findings offer a comprehensive description of dynamic critical behavior and establish a deep connection between equilibrium and nonequilibrium phase transitions.
subjectMagnetic Fields ; Metals ; Electric Currents ; Islands ; Thermodynamics ; Cadmium ; Phase Transition ; Scaling ; General/Miscellaneous;
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