High temperature operation of YBa sub 2 Cu sub 3 O sub 7 minus x dc SQUID
Conference
·
· IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)
OSTI ID:6089035
- Dept. of Electronics, Nagaoka Univ. of Technology (JP)
- Institute for Materials Research, Tohoku Univ. (JP)
In this paper using the YBa{sub x}Cu{sub 3}O{sub 7{minus}x} thin film deposited by MOCVD, the authors fabricate the dc SQUID operated at 77 K. The SQUIDs with microbridges are patterned by chemical and laser etching process. These SQUIDS operate stably without hysteresis in quite a wide range of temperature, within several periods of {phi}{sub 0}. At 4.2 K the voltage modulation of 80{mu}V and the intrinsic energy sensitibity of 4.9 {times} 10{sup {minus}31}J/Hz were obtained for the SQUID with an inductance of 70 pH. The flux noise of the SQUID operating at 77 K in FLL mode was 1.8 {times}10{sub {minus}4}{phi}{sub 0}/square root Hz at 10 Hz.
- OSTI ID:
- 6089035
- Report Number(s):
- CONF-900944--
- Conference Information:
- Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 27:2
- Country of Publication:
- United States
- Language:
- English
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Journal Article
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Mon Jun 15 00:00:00 EDT 1992
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Related Subjects
665300 -- Interactions Between Beams & Condensed Matter-- (1992-)
665411 -- Basic Superconductivity Studies-- (1992-)
665412* -- Superconducting Devices-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
CHEMICAL COATING
CHEMICAL VAPOR DEPOSITION
COPPER COMPOUNDS
COPPER OXIDES
DEPOSITION
ELECTRONIC EQUIPMENT
EQUIPMENT
ETCHING
FABRICATION
FILMS
FLUX QUANTIZATION
FLUXMETERS
FREQUENCY MODULATION
HIGH-TC SUPERCONDUCTORS
LASER-PRODUCED PLASMA
MAGNETIC FLUX
MEASURING INSTRUMENTS
MICROWAVE EQUIPMENT
MODULATION
NOISE
OPERATION
OXIDES
OXYGEN COMPOUNDS
PLASMA
SQUID DEVICES
SUPERCONDUCTING DEVICES
SUPERCONDUCTING FILMS
SUPERCONDUCTORS
SURFACE COATING
SURFACE FINISHING
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
665411 -- Basic Superconductivity Studies-- (1992-)
665412* -- Superconducting Devices-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
CHEMICAL COATING
CHEMICAL VAPOR DEPOSITION
COPPER COMPOUNDS
COPPER OXIDES
DEPOSITION
ELECTRONIC EQUIPMENT
EQUIPMENT
ETCHING
FABRICATION
FILMS
FLUX QUANTIZATION
FLUXMETERS
FREQUENCY MODULATION
HIGH-TC SUPERCONDUCTORS
LASER-PRODUCED PLASMA
MAGNETIC FLUX
MEASURING INSTRUMENTS
MICROWAVE EQUIPMENT
MODULATION
NOISE
OPERATION
OXIDES
OXYGEN COMPOUNDS
PLASMA
SQUID DEVICES
SUPERCONDUCTING DEVICES
SUPERCONDUCTING FILMS
SUPERCONDUCTORS
SURFACE COATING
SURFACE FINISHING
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES