Published December 5, 1988 | Version v1
Journal article

Intrinsic superconductor/normal-metal/superconductor-like weak links in Y1Ba2Cu3O/sub 7-//sub x/ thin films

  • 1. Bellcore, 331 Newman Springs Road, Red Bank, New Jersey 07701-40

Description

Magnetotransport measurements on micron-sized wires of the thin-film high T/sub c/ superconductor Y1 Ba2 Cu3 O/sub 7-//sub x/ made by pulsed laser deposition reveal an exponential suppression of the critical current with magnetic field, and a power law dependence of the critical current on reduced temperature. We ascribe this behavior to crystallographic defects in the film which behave as superconductor/normal-metal/superconductor weak links in a magnetic field. From the measurements we estimate a critical current density of 106 A cm-2 in a field of 16 T at 4.2 K

Additional details

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
53
Journal Issue
23
Series
Appl. Phys. Lett.
Journal Page Range
2336-2338
ISSN
0003-6951
CODEN
APPLA