Low noise niobium dc SQUID with a planar input coil

Journal Article · Mon Feb 14 23:00:00 EST 1983 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.93917· OSTI ID:6799031

de Waal, V J; van den Hamer, P; Klapwijk, T M

A practical all-niobium dc superconducting quantum interference device (SQUID) with a niobium spiral input coil has been developed. The SQUID utilizes submicron Josephson junctions. The best intrinsic energy resolution obtained with a 1-nH SQUID is 4 x 10/sup -32/ J/Hz. A 20-turn 1.2-..mu..H input coil is coupled to a 2.3-nH SQUID with an efficiency of 0.5. The energy resolution with respect to the coil is 1 x 10/sup -30/ J/Hz.

• Research Organization: Laboratorium voor Technische Natuurkunde, Technische Hogeschool Delft, Delft, The Netherlands
• OSTI ID: 6799031
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 42:4; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CONFIGURATION
CURRENTS
DATA
DIRECT CURRENT
EFFICIENCY
ELECTRIC COILS
ELECTRIC CURRENTS
ELECTRICAL EQUIPMENT
ELECTRONIC EQUIPMENT
ELEMENTS
ENERGY RESOLUTION
EQUIPMENT
EXPERIMENTAL DATA
FLUXMETERS
INFORMATION
JOSEPHSON JUNCTIONS
JUNCTIONS
MEASURING INSTRUMENTS
METALS
MICROWAVE EQUIPMENT
NIOBIUM
NOISE
NUMERICAL DATA
RESOLUTION
SQUID DEVICES
SUPERCONDUCTING DEVICES
SUPERCONDUCTING JUNCTIONS
TRANSITION ELEMENTS