Estimation of material parameters from the observation of paraconductivity in YBaCuO

Nigel Goldenfeld, P. D. Olmsted, T. A. Friedmann, D. M. Ginsberg

Research output: Contribution to journalArticlepeer-review

Abstract

We report observations of paraconductivity in a polycrystalline high-temperature superconductor, YBa2Cu3O7-δ, which are consistent with the predictions of Aslamazov and Larkin for three dimensional fluctuations. We thus obtain an estimate of the coherence length, ξO = 13.4±4.8 A ̊, which is consistent with an earlier estimate, based in part on heat capacity measurements. We use the Ginzburg criterion to estimate Hc2(O)≈500kG.

Original languageEnglish (US)
Pages (from-to)465-468
Number of pages4
JournalSolid State Communications
Volume65
Issue number6
DOIs
StatePublished - Feb 1988

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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