Fabrication of heteroepitaxial YBa sub 2 Cu sub 3 O sub 7 minus x -PrBa sub 2 Cu sub 3 O sub 7 minus x -YBa sub 2 Cu sub 3 O sub 7 minus x Josephson devices grown by laser deposition

Journal Article · Mon Nov 06 00:00:00 EST 1989 · Applied Physics Letters; (USA)

DOI:https://doi.org/10.1063/1.102340· OSTI ID:5169720

Rogers, C T; Inam, A; Hegde, M S; Dutta, B; Wu, X D; Venkatesan, T ^[1]

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1. Bellcore, Red Bank, New Jersey 07701 (US)

We have fabricated Josephson weak links from {ital in} {ital situ} laser-deposited four-layer structures of YBa{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}}/PrBa{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}}/YBa{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}}Au. These devices show superconductor/normal-metal/superconductor-like current-voltage characteristics with good areal scaling of both the critical currents {ital I}{sub {ital c}} and resistances {ital R}{sub {ital j}}, with {ital I}{sub {ital cRj}}{approx}3.5 mV. Constant-voltage current steps observed in response to 84 GHz mm-wave radiation and modulation of the dc supercurrent in a transverse magnetic field demonstrate that both the ac and dc Josephson effects occur in these devices.

• OSTI ID: 5169720
• Journal Information: Applied Physics Letters; (USA), Vol. 55:19; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
36 MATERIALS SCIENCE
BARIUM OXIDES
SUPERCONDUCTIVITY
COPPER OXIDES
JOSEPHSON JUNCTIONS
FABRICATION
PRASEODYMIUM OXIDES
YTTRIUM OXIDES
ELECTRIC CURRENTS
ELECTRIC POTENTIAL
JOSEPHSON EFFECT
MAGNETIC FIELDS
PEROVSKITES
SUPERCONDUCTING DEVICES
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
CURRENTS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
JUNCTIONS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PRASEODYMIUM COMPOUNDS
RARE EARTH COMPOUNDS
SUPERCONDUCTING JUNCTIONS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
426001* - Engineering- Superconducting Devices & Circuits- (1990-)
360204 - Ceramics
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656100 - Condensed Matter Physics- Superconductivity