Upper Critical Fields of Ba2YCu3O9-δ
- 1 June 1987
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 26 (6A) , L978
- https://doi.org/10.1143/jjap.26.l978
Abstract
The temperature dependence of the upper critical field H c2 of the high T c superconductor Ba2YCu3O9-δ was measured resistively between 0 and 40 T on a single phased sample with T c=92 K. The critical field defined as the midpoint of the transition reaches 34 T at the boiling point of liquid-nitrogen. From the initial slope of the H c2(T) curve of - 1.27 T/K, the electronic specific heat coefficient was estimated to be 7.5 mJ/mol·K2 using the dirty limit approximation.Keywords
This publication has 3 references indexed in Scilit:
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- Superconductivity at 93 K in a new mixed-phase Y-Ba-Cu-O compound system at ambient pressurePhysical Review Letters, 1987
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