Fabrication and performance of high T/sub c/ two hole bulk and single hole thick film RF SQUIDs at 77 K

Two-hole YBCO bulk and one-hole YBCO, BSCCO thick-film RF SQUIDs have been fabricated and operated at 77 K. RF SQUID behavior has been studied using commercial RF SQUID electronics with external RF and AF sources. Flux noise density of these SQUIDs depends on the quality of the microbridge. Flux noi...

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Veröffentlicht in:	IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) 1991-03, Vol.27 (2), p.3029-3031
Hauptverfasser:	Khare, N., Gupta, A.K., Chaudhry, S., Arora, S.K., Tomar, V.S., Ojha, V.N.
Format:	Artikel
Sprache:	eng
Schlagworte:	360207 > Ceramics, Cermets, & Refractories-- Superconducting Properties-- (1992-) 665411 > Basic Superconductivity Studies-- (1992-) ALKALINE EARTH METAL COMPOUNDS Annealing BARIUM COMPOUNDS BARIUM OXIDES BISMUTH COMPOUNDS CALCIUM COMPOUNDS CALCIUM OXIDES CHALCOGENIDES CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY COPPER COMPOUNDS COPPER OXIDES CURRENT DENSITY ELECTRIC CONDUCTIVITY ELECTRICAL PROPERTIES ELECTRONIC EQUIPMENT FABRICATION FLUX QUANTIZATION FLUXMETERS HIGH-TC SUPERCONDUCTORS HOLES Josephson junctions MAGNETIC FLUX MATERIALS SCIENCE MEASURING INSTRUMENTS MICROWAVE EQUIPMENT OXIDES OXYGEN COMPOUNDS PHYSICAL PROPERTIES Radio frequency RF SYSTEMS SQUID DEVICES SQUIDs STRONTIUM COMPOUNDS STRONTIUM OXIDES Superconducting device noise SUPERCONDUCTING DEVICES Superconducting materials SUPERCONDUCTIVITY SUPERCONDUCTORS Thick films TRANSITION ELEMENT COMPOUNDS Yttrium barium copper oxide YTTRIUM COMPOUNDS 665412 > Superconducting Devices-- (1992-) YTTRIUM OXIDES
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Zusammenfassung:	Two-hole YBCO bulk and one-hole YBCO, BSCCO thick-film RF SQUIDs have been fabricated and operated at 77 K. RF SQUID behavior has been studied using commercial RF SQUID electronics with external RF and AF sources. Flux noise density of these SQUIDs depends on the quality of the microbridge. Flux noise present in various reported high-T/sub c/ film RF SQUIDs is compared.
ISSN:	0018-9464 1941-0069
DOI:	10.1109/20.133848