Anisotropic properties of the fluctuational conductivity in YBCO

S. Sarti, V. Boffa, R. Fastampa, M. Giura, R. Marcon, E. Silva

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We report on resistive transitions in YBCO films as a function of strength and orientation of the applied magnetic field. Angular behaviour is found to be markedly different in the upper and lower part of the transition. At high dissipation level, an angular scaling behaviour is observed, following the anisotropic Lawrence-Doniach expression for the upper critical field. The scaling breaks down at the midpoint of the transition. No scaling is observed at lower temperatures, even if different angular scaling functions are used. The results are very well interpreted in terms of superconducting fluctuations above p/pn=0.5 and pinning phenomena below.
Original languageEnglish
Pages (from-to)1383 - 1384
Number of pages2
JournalCzechoslovak Journal of Physics
Issue numberSUPPL. 3
Publication statusPublished - 1996
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Sarti, S., Boffa, V., Fastampa, R., Giura, M., Marcon, R., & Silva, E. (1996). Anisotropic properties of the fluctuational conductivity in YBCO. Czechoslovak Journal of Physics, 46(SUPPL. 3), 1383 - 1384.