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Critical currents versus normal-state resistivity in polycrystalline copper oxide superconductors

✍ Scribed by A. Díaz; G. Domarco; J. Maza; F. Vidal

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
144 KB
Volume
235-240
Category
Article
ISSN
0921-4534

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✦ Synopsis

Recent measurements of critical densities at zero applied magnetic field, Ic, as a function of temperature, and the electrical resistivity, p, in polycrystalline YBa2Cu307-5 have shown a close relationship between the normal state resistivity and Ic. More precisely, Ic is found to be inversely proportional to the average intergrain resistivity, Pct-In this work we extend these measurements of Ic and Pct to other two families of HTSC's: HoBa2Cu3OT_8 and Bil.5Pb0.sSr2Ca2Cu3Oy. Our results confirm the validity of the above mentioned relationship between Ic and Pct in these different ceramic HTSC compounds.

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