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Direct HVEM observations of transitions in YBa2Cu3O7−x in the presence of a controlled oxygen atmosphere

✍ Scribed by Avigdor Zangvil; Yeu-Wen Chang

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
989 KB
Volume
173
Category
Article
ISSN
0921-4534

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Current-Voltage characteristics of c-axis oriented thin films of YBa2Cu307-x exhibit a power-law dependence with Vo~ICt(T) near the superconducting transition temperature Tc0. The exponent ¢x(T) shows a "universal jump" from 3 to 1 at the Kosterlitz-Thouless transition temperature TKT. The differenc