Effect of Thermodynamic Fluctuations on the Transport Properties in YBaCuO Thin Films

W. Lang, G. Heine, H. Jodlbauer, P. Schwab, X.Z. Wang, D. Bäuerle

Publications: Contribution to bookChapter

Abstract

Measurements of the electrical resistivity and the Hall effect in thin films of YBaCuO are reported. The films have been fabricated by pulsed laser deposition in oxygen atmosphere on MgO substrates. The rounding of the resistivity curve above T C was attributed to thermodynamic fluctuations of the superconducting order parameter and analyzed in terms of Aslamazov-Larkin and Maki-Thompson theories and their extensions for 2-dimensional, layered superconductors. These fluctuation contributions were also found near the superconducting transition of the Hall effect. From the results we deduce a c-axis coherence length ξC(0) = 1.5 Å and a phase-relaxation time τφ = 8.6 × 10−13 s at 100 K, indicating 2-dimensional transport and moderate strong pair-breaking in YBaCuO, respectively.
Original languageEnglish
Title of host publicationElectronic Properties of High-Tc Superconductors
EditorsHans Kuzmany, Michael Mehring, Jörg Fink
Place of PublicationBerlin
PublisherSpringer-Verlag Berlin-Heidelberg
Pages83-87
Number of pages5
ISBN (Electronic)978-3-642-84865-0
ISBN (Print)978-3-642-84867-4
DOIs
Publication statusPublished - 1993

Publication series

SeriesSpringer Series in Solid State Sciences
Volume113

Austrian Fields of Science 2012

  • 103018 Materials physics

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