Radiation effects in superconducting NbN/AlN multilayer films

Journal Article · Sat Dec 15 04:00:00 EST 1990 · Journal of Applied Physics; (USA)

DOI:https://doi.org/10.1063/1.346876· OSTI ID:6173241

Herzog, R; Weber, H W ^[1]; Gray, K E; Kampwirth, R T; Miller, D J; Murduck, J M ^[2]

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1. Atominstitut der Oesterreichischen Universitaeten, Vienna (Austria) and Max Planck Institut fuer Festkoerperforschung, HML, F-38042 Grenoble (France)
2. Materials Science Division, Argonne National Laboratory, Argonne, IL (USA)

The results of neutron irradiation up to a fluence of 10{sup 23} m{sup {minus}2} ({ital E}{gt}0.1 MeV) are reported for sputtered NbN/AlN multilayer films. The superconducting properties change only slightly with neutron fluence. For the best multilayers, which exhibit critical current densities {ital J}{sub {ital c}} of {gt}10{sup 8} A/m{sup 2} at 4.2 K and 20 T, the high-field data show virtually no change in {ital J}{sub {ital c}}. It is therefore proved experimentally that NbN/AlN multilayers, which exhibit higher {ital J}{sub {ital c}} than single NbN thin films, exhibit the same extremely radiation-hard, high-field behavior which was reported previously for such NbN films.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6173241
• Journal Information: Journal of Applied Physics; (USA), Journal Name: Journal of Applied Physics; (USA) Vol. 68:12; ISSN 0021-8979; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
ALUMINIUM COMPOUNDS
ALUMINIUM NITRIDES
BARYONS
CRITICAL CURRENT
CRITICAL FIELD
CURRENTS
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
ELEMENTARY PARTICLES
FERMIONS
FILMS
HADRONS
LAYERS
MAGNETIC FIELDS
NEUTRONS
NIOBIUM COMPOUNDS
NIOBIUM NITRIDES
NITRIDES
NITROGEN COMPOUNDS
NUCLEONS
PHYSICAL PROPERTIES
PHYSICAL RADIATION EFFECTS
PNICTIDES
RADIATION EFFECTS
REFRACTORY METAL COMPOUNDS
SPUTTERING
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
ULTRALOW TEMPERATURE