Pinning behavior of Nb/sub 3/Ge thin film superconductors
Conference
·
· IEEE Trans. Magn.; (United States)
OSTI ID:6531393
Nb/sub 3/Ge thin film superconductors have been prepared by coevaporation and cosputtering on hot sapphire substrates. Films were analyzed by X-ray and backscattering techniques. Critical current density, J/sub c/, has been determined between 4.2 K and T/sub c/ in magnetic fields up to 13 Tesla; upper critical field, B/sub c2/, was obtained from resistive transition or by extrapolation from J/sub c/. Pinning in coevaporated films obeys temperature scaling, whereas cosputtered films have their pinning maximum at a constant field value, B/sub p/. A correlation between B/sub p/ and the Nb/sub 3/Ge film microstructure is suggested as pinning increases with B/sub p/. 13 refs.
- Research Organization:
- Kernforschungszent Karlsruhe, Ger
- OSTI ID:
- 6531393
- Report Number(s):
- CONF-810340-
- Conference Information:
- Journal Name: IEEE Trans. Magn.; (United States) Journal Volume: MAG-17:5
- Country of Publication:
- United States
- Language:
- English
Similar Records
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Technical Report
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Mon Oct 31 23:00:00 EST 1977
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Journal Article
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Conference
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· AIP (Am. Inst. Phys.) Conf. Proc.; (United States)
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OSTI ID:7230913
Related Subjects
36 MATERIALS SCIENCE
360104 -- Metals & Alloys-- Physical Properties
420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALLOYS
CRITICAL CURRENT
CRITICAL FIELD
CURRENT DENSITY
CURRENTS
ELECTRIC CURRENTS
EVAPORATION
FILMS
GERMANIUM ALLOYS
MAGNETIC FIELDS
MAGNETIC FLUX
NIOBIUM ALLOYS
NIOBIUM BASE ALLOYS
PHASE TRANSFORMATIONS
SPUTTERING
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
THIN FILMS
360104 -- Metals & Alloys-- Physical Properties
420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALLOYS
CRITICAL CURRENT
CRITICAL FIELD
CURRENT DENSITY
CURRENTS
ELECTRIC CURRENTS
EVAPORATION
FILMS
GERMANIUM ALLOYS
MAGNETIC FIELDS
MAGNETIC FLUX
NIOBIUM ALLOYS
NIOBIUM BASE ALLOYS
PHASE TRANSFORMATIONS
SPUTTERING
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
THIN FILMS