Integrated high-[ital T][sub [ital c]] multiloop magnetometer

Journal Article · Sun Mar 12 23:00:00 EST 1995 · Applied Physics Letters; (United States)

DOI:https://doi.org/10.1063/1.113220· OSTI ID:6543753

Ludwig, F; Dantsker, E; Kleiner, R; Koelle, D; Clarke, J ^[1]; Knappe, S; Drung, D; Koch, H ^[2]; Alford, N M; Button, T W ^[3]

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1. Department of Physics, University of California, Berkeley, California 94720 (United States) Materials Sciences Division, Lawrence Berkeley Laboratory, Berkeley, California 94720 (United States)
2. Physikalisch-Technische Bundesanstalt, Institut Berlin, Abbestrasse 2-12, 10587 Berlin (Germany)
3. IRC in Materials, University of Birmingham, Birmingham B15 2TT (United Kingdom)

Two integrated, thin-film multiloop magnetometers (fractional turn SQUIDs) have been fabricated using a YBa[sub 2]Cu[sub 3]O[sub 7[minus][ital x]]-SrTiO[sub 3]-YBa[sub 2]Cu[sub 3]O[sub 7[minus][ital x]] multilayer process. The magnetometers have 16 parallel loops, an outer diameter of 7 mm and effective areas of 1.84 and 1.89 mm[sup 2], respectively. The magnetic field noise of the better device, measured in a YBCO tube at 77 K with a bias reversal scheme, was 37 fT Hz[sup [minus]1/2] at 1 Hz and 18 fT Hz[sup [minus]1/2] at 1 kHz.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6543753
• Journal Information: Applied Physics Letters; (United States), Journal Name: Applied Physics Letters; (United States) Vol. 66:11; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

665412* -- Superconducting Devices-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ELECTRONIC CIRCUITS
ELECTRONIC EQUIPMENT
EQUIPMENT
FABRICATION
FILMS
FLUXMETERS
HIGH-TC SUPERCONDUCTORS
INTEGRATED CIRCUITS
MAGNETOMETERS
MEASURING INSTRUMENTS
MICROELECTRONIC CIRCUITS
MICROWAVE EQUIPMENT
PERFORMANCE
SIGNAL-TO-NOISE RATIO
SQUID DEVICES
SUPERCONDUCTING DEVICES
SUPERCONDUCTING FILMS
SUPERCONDUCTORS