Upper Critical Field of New Oxide Superconductor Bi-Sr-Ca-Cu-O
- 1 April 1988
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 27 (4A) , L668
- https://doi.org/10.1143/jjap.27.l668
Abstract
The upper critical field H c2 of Bi-Sr-Ca-Cu-O superconducting material, with a resistive transition above 100 K, was investigated by observing variations in resistivity with temperature down to 50 K and with magnetic fields up to 12 T. The slope of the critical field, the change in H c2 with temperature, was -1.5 T/K for the midpoint of the transition. The values of H c2 at 77 K and 0 K were estimated by extrapolation to be 41 T and 108 T, respectively.Keywords
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