NDLI: Study of superconducting fluctuations in the high-temperature superconductors YBCO and BSCCO by magneto-transport measurements

Content Provider	IEEE Xplore Digital Library
Author	Lang, W. Sekirnjak, C. Heine, G. Schwab, P. Proyer, S. Bauerle, D. Kula, W. Sobolewski, R.
Copyright Year	1994
Description	Author affiliation: University of Rochester (Lang, W.)
Abstract	Summary form only given. The contributions of thermodynamic fluctuations of the superconducting order parameter to several components of the normal-state magneto-conductivity tensor were investigated. We present measurements of the electrical resistivity, the Hall effect and the magnetoresistance at temperatures above T/sub c/ in thin films of the high-T/sub c/ superconductors YBa/sub 2/Cu/sub 3/O/sub 7/ and (Bi,Pb)/sub 2/Sr/sub 2/Ca/sub 2/Cu/sub 3/O/sub x/ with the magnetic field oriented parallel to the c-axis. From an analysis of the results using the theories for thermodynamic fluctuations in layered superconductors of Aslamazov-Larkin and Maki-Thompson type, we obtain a consistent set of parameters. The main results are the coherence lengths along the ab-plane, /spl xi//sub ab/(0) = 1.2 nm (YBCO), /spl xi//sub ab/(0) = 1.65 nm (BSCCO) and parallel to the c-axis, /spl xi//sub c/(0) = 1.5 nm (YBCO), /spl xi//sub c/(0) = 1.4 nm (BSCCO), respectively. Magnetoresistance measurements in fields up to 13 T reveal superconducting fluctuations extending to temperatures as high as 2T/sub c/.
Starting Page	692
Ending Page	692
File Size	99377
Page Count	1
File Format	PDF
DOI	10.1109/STSM.1994.836134
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-07-24
Publisher Place	Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Thermodynamics Fluctuations Magnetic field measurement Laboratories Superconductivity Bismuth compounds Superconducting magnets High temperature superconductors Magnetoresistance Yttrium barium copper oxide
Content Type	Text
Resource Type	Article

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