Supercurrent distributions and flux penetration in YBa{sub 2}Cu{sub 3}O{sub 7}-YBa{sub 2}Co{sub 0.15}Cu{sub 2.85}O{sub 7}-YBa{sub 2}Cu{sub 3}O{sub 7} edge junctions
- Department of Physics, University of Virginia, Charlottesville, Virginia 22901 (United States)
- Conductus, Inc., 969 West Maude Avenue, Sunnyvale, California 94086 (United States)
We report the measurement and analysis of critical current (I{sub c}) modulation and microwave response in magnetic field for a set of YBa{sub 2}Cu{sub 3}O{sub 7}-YBa{sub 2}Co{sub 0.15}Cu{sub 2.85}O{sub 7}-YBa{sub 2}Cu{sub 3}O{sub 7} ramp-edge Josephson junctions. These junctions have been fabricated with various widths w to span the transition from the moderately small (w{lt}2{lambda}{sub J}) to the moderately large (w{gt}2{lambda}{sub J}) junction limit at 77 K. As w increases, both the I{sub c} modulation and microwave absorption behavior independently suggest a growing contribution from edge supercurrents. The addition of a superconducting ground plane was shown to reduce the edge supercurrent effects. {copyright} {ital 1997 American Institute of Physics.}
- OSTI ID:
- 538422
- Journal Information:
- Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 5 Vol. 82; ISSN JAPIAU; ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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