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Alternate-current dynamic reorganization and nonequilibrium phase transition in driven vortex matter

M. Marziali Bermúdez, L. F. Cugliandolo, and G. Pasquini
Phys. Rev. B 101, 060502(R) – Published 10 February 2020
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Abstract

Externally driven glassy systems may undergo nonequilibrium phase transitions (NEPTs). In particular, ac-driven systems display special features, such as those observed in the vortex matter of NbSe2, where oscillatory drives reorganize the system into partially ordered vortex lattices. We provide experimental evidence for this dynamic reorganization and we show an unambiguous signature of its connection with an NEPT driven by ac forces. We perform a scaling analysis and we estimate critical exponents for this transition. Our results share similarities with some glass-to-viscous-liquid NEPTs and invite a search for similar physics in other elastic disordered media.

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  • Received 18 September 2019
  • Revised 12 December 2019
  • Accepted 28 January 2020

DOI:https://doi.org/10.1103/PhysRevB.101.060502

©2020 American Physical Society

Physics Subject Headings (PhySH)

Statistical Physics & ThermodynamicsCondensed Matter, Materials & Applied Physics

Authors & Affiliations

M. Marziali Bermúdez1,2, L. F. Cugliandolo3,4, and G. Pasquini1,5,*

  • 1Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, C1428EGA Buenos Aires, Argentina
  • 2Instituto de Física de Líquidos y Sistemas Biológicos (IFLYSIB), UNLP-CONICET, B1900BTE La Plata, Argentina
  • 3Laboratoire de Physique Théorique et Hautes Energies, Sorbonne Université, CNRS UMR 7589, 4 Place Jussieu, Tour 13, 5ème étage, 75252 Paris Cedex 05, France
  • 4Institut Universitaire de France, 1 rue Descartes, 75231 Paris Cedex 05, France
  • 5Instituto de Física de Buenos Aires (IFIBA), UBA-CONICET, C1428EGA Buenos Aires, Argentina

  • *pasquini@df.uba.ar

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Issue

Vol. 101, Iss. 6 — 1 February 2020

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