Anisotropic proximity coupling in small YBa sub 2 Cu sub 3 O sub 7 -normal-Pb junctions

Journal Article · Mon Sep 10 00:00:00 EDT 1990 · Applied Physics Letters; (USA)

DOI:https://doi.org/10.1063/1.103517· OSTI ID:6339159

Lee, M; Lew, D; Eom, C B; Geballe, T H; Beasley, M R ^[1]

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1. Department of Applied Physics, Stanford University, Stanford, CA (USA)

We report results of current-voltage measurements made on small-area YBa{sub 2}Cu{sub 3}O{sub 7}-{ital N}-Pb thin-film junctions ({ital N}=Au, Ag) where the orientation of the Cu-O plane has been varied from (001) to (103) to (100) to study the effects of anisotropy. For (001) and (103) oriented junctions there is no well defined supercurrent despite very low contact resistances. By contrast, (100) junctions do display a well defined supercurrent. We compare these results to recent Josephson work and discuss implications for tunnellng and device work.

• OSTI ID: 6339159
• Journal Information: Applied Physics Letters; (USA), Journal Name: Applied Physics Letters; (USA) Vol. 57:11; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CURRENTS
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
ELEMENTS
FILMS
GOLD
HIGH-TC SUPERCONDUCTORS
JOSEPHSON JUNCTIONS
JUNCTIONS
LEAD
METALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PROXIMITY EFFECT
SILVER
SUPERCONDUCTING FILMS
SUPERCONDUCTING JUNCTIONS
SUPERCONDUCTIVITY
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES