Substrate step-edge YBa sub 2 Cu sub 3 O sub 7 rf SQUIDs

Journal Article · Mon Feb 04 04:00:00 EST 1991 · Applied Physics Letters; (USA)

DOI:https://doi.org/10.1063/1.104581· OSTI ID:6219867

Daly, K P; Dozier, W D; Burch, J F; Coons, S B; Hu, R; Platt, C E; Simon, R W ^[1]

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1. TRW Space Technology Group, One Space Park, Redondo Beach, California 90278 (US)

We have developed a technique which permits high-yield fabrication of microbridges and low noise YBa{sub 2}Cu{sub 3}O{sub 7} superconducting quantum interference devices (SQUIDs) in epitaxial thin films. These SQUIDs operate over a wide temperature range extending from 4 K to close to the superconducting transition temperature. Measurements of an rf SQUID operating at 77 K give a peak-to-peak flux sensitivity of 36 {mu}V/{Phi}{sub 0} and a flux noise at 10 Hz of 1.5{times} 10{sup {minus}4} {Phi}{sub 0}/{radical}Hz. Device yields over 80% have been obtained.

• OSTI ID: 6219867
• Journal Information: Applied Physics Letters; (USA), Journal Name: Applied Physics Letters; (USA) Vol. 58:5; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

426001* -- Engineering-- Superconducting Devices & Circuits-- (1990-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
ELECTRONIC EQUIPMENT
EQUIPMENT
FABRICATION
FLUXMETERS
GRAIN BOUNDARIES
JOSEPHSON JUNCTIONS
JUNCTIONS
MAGNETIC FLUX
MEASURING INSTRUMENTS
MICROSTRUCTURE
MICROWAVE EQUIPMENT
OPERATION
OXIDES
OXYGEN COMPOUNDS
SQUID DEVICES
SUPERCONDUCTING DEVICES
SUPERCONDUCTING JUNCTIONS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES