Intrinsic superconductor/normal-metal/superconductor-like weak links in Y1Ba2Cu3O7-x thin films

P. England; T. Venkatesan; X. D. Wu; A. Inam; M. S. Hegde; T. L. Cheeks; H. G. Craighead

doi:10.1063/1.100517

Intrinsic superconductor/normal-metal/superconductor-like weak links in Y₁Ba₂Cu₃O_7-x thin films

P. England, T. Venkatesan, X. D. Wu, A. Inam, M. S. Hegde, T. L. Cheeks, H. G. Craighead

Houston Methodist

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

Abstract

Magnetotransport measurements on micron-sized wires of the thin-film high T_c superconductor Y₁ Ba₂ Cu₃ O _7-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.

Original language	English (US)
Pages (from-to)	2336-2338
Number of pages	3
Journal	Applied Physics Letters
Volume	53
Issue number	23
DOIs	https://doi.org/10.1063/1.100517
State	Published - 1988

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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abstract = "Magnetotransport measurements on micron-sized wires of the thin-film high Tc superconductor Y1 Ba2 Cu3 O 7-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.",

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AU - England, P.

AU - Venkatesan, T.

AU - Wu, X. D.

AU - Inam, A.

AU - Hegde, M. S.

AU - Cheeks, T. L.

AU - Craighead, H. G.

PY - 1988

Y1 - 1988

N2 - Magnetotransport measurements on micron-sized wires of the thin-film high Tc superconductor Y1 Ba2 Cu3 O 7-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.

AB - Magnetotransport measurements on micron-sized wires of the thin-film high Tc superconductor Y1 Ba2 Cu3 O 7-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.

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Intrinsic superconductor/normal-metal/superconductor-like weak links in Y₁Ba₂Cu₃O_7-x thin films

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