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Critical currents in cylindrical, superconducting granular aluminum films

✍ Scribed by T. Aomine; K. Miyake

Publisher
Springer US
Year
1979
Tongue
English
Weight
370 KB
Volume
37
Category
Article
ISSN
0022-2291

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✦ Synopsis

Critical currents in cylindrical granular AI thin films of different thicknesses and electron mean free paths have been measured as a function of temperature.

Experimental values of critical current Ic in all specimens are less than the theoretical pair-breaking current. The observed temperature dependence of Ic is in agreement with the theoretical one near the critical temperature, but not at lower temperatures. Effects of the manner in which the current terminals are attached to the specimen and of a deliberately applied weak spot on Ic have been investigated. The dependence of Ic on the rise time and the width of the pulse current has been studied.

πŸ“œ SIMILAR VOLUMES

D.c. critical currents in granular sinte
D.c. critical currents in granular sintered superconducting ceramics
✍ R. Riedinger πŸ“‚ Article πŸ“… 1990 πŸ› Elsevier Science 🌐 English βš– 307 KB

Intergrain weak link coupling limits the superconducting critical current at zero voltage and thus electric power transportation. A classical model has been developed independently by Rhyner and Blatter and the present author which neglects phase fluctuations of the superconducting order parameter b