History-dependent dissipative vortex dynamics in superconducting arrays

Malcolm Durkin, Ian Mondragon-Shem, Serena Eley, Taylor L. Hughes, Nadya Mason

Research output: Contribution to journalArticle

Abstract

We perform current (I)-voltage (V) measurements on low resistance superconductor-normal-superconductor arrays in finite magnetic fields, focusing on the dilute vortex population regime. We observe significant deviations from predicted behavior, notably the absence of a differential resistance peak near the vortex depinning current, and a broad linear I-V region with an extrapolated I intercept equal to the depinning current. Comparing these results to an overdamped molecular vortex model, we find that this behavior can be explained by the presence of a history-dependent dissipative force. This approach has not been considered previously, to our knowledge, yet it is crucial for obtaining a correct description of the vortex dynamics in superconducting arrays.

Original languageEnglish (US)
Article number024510
JournalPhysical Review B
Volume94
Issue number2
DOIs
StatePublished - Jul 14 2016

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Vortex flow
histories
vortices
Superconducting materials
low resistance
Magnetic fields
deviation
Electric potential
electric potential
magnetic fields

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

History-dependent dissipative vortex dynamics in superconducting arrays. / Durkin, Malcolm; Mondragon-Shem, Ian; Eley, Serena; Hughes, Taylor L.; Mason, Nadya.

In: Physical Review B, Vol. 94, No. 2, 024510, 14.07.2016.

Research output: Contribution to journalArticle

Durkin, Malcolm ; Mondragon-Shem, Ian ; Eley, Serena ; Hughes, Taylor L. ; Mason, Nadya. / History-dependent dissipative vortex dynamics in superconducting arrays. In: Physical Review B. 2016 ; Vol. 94, No. 2.
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