Superconductivity, structural disorder, and phase transitions in ion-irradiated Nb/sub 3/Al films

Journal Article · Tue Jun 01 04:00:00 EDT 1982 · J. Low Temp. Phys.; (United States)

DOI:https://doi.org/10.1007/BF00683984· OSTI ID:5154152

Schneider, U; Linker, G; Meyer, O

Thin films of single-phase A15 Nb/sub 3/Al were irradiated with protons and nitrogen ions. X-ray intensity analysis revealed a decrease of the Bragg--Williams long-range order parameter S and an increase of the average displacement amplitude of the atoms U/sub perpendicular/ in the fluence region where a decrease of the superconducting transition temperature T/sub c/ was observed. The functional dependence of T/sub c/ on S and U/sub perpendicular/ was found to depend on the ion species used for irradiation. After irradiation with 10/sup 16/ N/sup 2 +//cm/sup 2/ the A15 phase transformed into an A2 phase. Furnace annealing caused a retransformation into the A15 phase with improved superconducting properties.

• Research Organization: Kernforschungszentrum Karlsruhe, Institut fuer Angewandte Kernphysik I, Karlsruhe, Federal Republic of Germany
• OSTI ID: 5154152
• Journal Information: J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 47:5; ISSN JLTPA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
360106 -- Metals & Alloys-- Radiation Effects
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM COMPOUNDS
ANNEALING
BARYONS
BETA-W LATTICES
CHARGED PARTICLES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTAL-PHASE TRANSFORMATIONS
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY RANGE
EXPERIMENTAL DATA
FERMIONS
FILMS
HADRONS
HEAT TREATMENTS
INFORMATION
IONIZING RADIATIONS
IONS
KEV RANGE
KEV RANGE 100-1000
LATTICE PARAMETERS
NIOBIUM COMPOUNDS
NITROGEN IONS
NUCLEONS
NUMERICAL DATA
ORDER PARAMETERS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PHYSICAL RADIATION EFFECTS
PROTONS
RADIATION EFFECTS
RADIATIONS
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
X RADIATION