Characteristics of a sputtered Y-Ba-Cu-O thin-film dc superconducting quantum interference device prepared by rf sputtering

Journal Article · Thu Aug 01 04:00:00 EDT 1991 · Journal of Applied Physics; (United States)

DOI:https://doi.org/10.1063/1.349505· OSTI ID:5552988

Goto, T; Ying, X B; Park, C H; Takeda, Y; Usami, K; Kobayashi, T ^[1]

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1. Department of Communications and Systems, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182, Japan (JP)

A dc superconducting quantum interference device (SQUID) is fabricated on an amorphous Y-Ba-Cu-O film by a photolithographic technique and successive post-annealing treatment. The SQUID shows periodic and symmetric behavior in the voltage versus magnetic-flux curves ({ital V}-{Phi} curves). No multiple periodicities are observed. The transfer function {partial derivative}{ital V}/{partial derivative}{Phi} for output voltage is about 90 and 20 {mu}V/{Phi}{sub 0} at 4.2 and 56 K, respectively. It is expected that the SQUID contains only two symmetric active Josephson junctions.

• OSTI ID: 5552988
• Journal Information: Journal of Applied Physics; (United States), Journal Name: Journal of Applied Physics; (United States) Vol. 70:3; ISSN 0021-8979; ISSN JAPIA
• 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
AMORPHOUS STATE
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
ELECTRICAL PROPERTIES
ELECTRONIC EQUIPMENT
EQUIPMENT
FABRICATION
FILMS
FLUXMETERS
MEASURING INSTRUMENTS
MICROWAVE EQUIPMENT
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SPUTTERING
SQUID DEVICES
SUPERCONDUCTING DEVICES
THIN FILMS
TRANSITION ELEMENT COMPOUNDS
ULTRALOW TEMPERATURE
VERY LOW TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES