Length dependent properties of SNS microbridges
Conference
·
· IEEE Trans. Magn.; (United States)
OSTI ID:6340627
Using an in-situ, self-aligned deposition scheme, arrays of variable length SNS junctions in the range of 0.05 ..mu..m to 1 ..mu..m have been fabricated. Arrays of SNS microbridges of lead-copper and niobium-copper fabricated using this technique have been used to study the length dependence, at constant temperature, of the critical current I and bridge resistance R /SUB d/ . For bridges with lengths pounds greater than the normal metal coherence length xi /SUB n/ (T), the dependence of I /SUB c/ on L is consistent with an exponential dependence on the reduced length l=L/xi /SUB n/ (T). For shorter bridges, deviations from this behavior is seen. It was also found that the bridge resistance R /SUB d/ does not vary linearly with the geometric bridge length but appears to approach a finite value as L..-->..O.
- Research Organization:
- State University of New York at Stony Brook, Stony Brook, NY
- OSTI ID:
- 6340627
- Report Number(s):
- CONF-840937-
- Conference Information:
- Journal Name: IEEE Trans. Magn.; (United States) Journal Volume: MAG-21:2
- Country of Publication:
- United States
- Language:
- English
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