1997/11/15 by Katerina Moloni, Mark Friesen, Shi Li +3 · 2 citations
Physics and Astronomy · #Advanced Condensed Matter Physics #Physics of Superconductivity and Magnetism #Theoretical and Computational Physics #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.56.14784
6 pages LaTeX, 4 figures provided upon request
arxiv created 1997/11/15 · openalex publication_date 1997/12/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The universal behavior of the continuous superconducting (glass) phase transition is studied in a YBa2Cu3O_7\mathrm\ensuremath-\mathrm\ensuremathδ thin film. An analysis technique for extracting critical exponents is developed, using current-voltage (J-E) measurements. The method places narrow limits on the glass scaling exponents, zg and \ensuremathνg, as well as the glass-transition temperature, Tg(H). The universal values zg=3.8\ifmmode±\else\textpm\fi0.2 and \ensuremathνg=1.8\ifmmode±\else\textpm\fi0.1 are obtained. Using these values, the data are scaled for fields in the range 1--9 T. Collapse of the scaling forms at different fields describes the universal scaling function. The field dependence of the universal collapse is interpreted in terms of the three-dimensional XY multicritical scaling theory.