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Fluctuation induced paraconductivity in YBa2Cu3O7–δ

✍ Scribed by V.P.N. Padmanaban; K. Shahi

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
714 KB
Volume
172
Category
Article
ISSN
0921-4534

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✦ Synopsis

The superconductivity in various high quality polycrystalline YBa2Cu@-6 samples with very sharp transitions have been studied. Two different fitting procedures to the normal-state resistivity at high temperatures have been used to calculate the background resistivity. The Anderson-Zou fit to the data is found to work as well in pellets as in single crystals. The excess conductivity plots show the high-temperature, mean-field, crossover and critical dynamics regions as the temperature approaches

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