Excess conductivity in 2:2:1:2-phase Bi-Sr-Ca-Cu-O epitaxial thin films
- 1 December 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 46 (22) , 14919-14921
- https://doi.org/10.1103/physrevb.46.14919
Abstract
Measurements of the excess conductivity above the transition temperature on selected, high-quality, superconducting epitaxial films of the 2:2:1:2-phase Bi-Sr-Ca-Cu-O (BSCCO), obtained by liquid-phase epitaxy, are reported. The data confirm the two-dimensional nature of the thermodynamical fluctuations in BSCCO compounds in a wide range of temperature above and very good agreement is found with an extended version of the Aslamazov-Larkin theory [L. Reggiani, R. Vaglio, and A. A. Varlamov, Phys. Rev. B 44, 9541 (1991)].
Keywords
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