Superconductivity and atomic ordering in neutron-irradiated Nb/sub 3/Ge

Conference · Mon Jan 01 04:00:00 EST 1979

OSTI ID:5924371

Cox, D E; Sweedler, A R; Moehlecke, S; Newkirk, L R; Valencia, F A

The effects of high energy (E > 1 MeV) neutron irradiation on the properties of Nb/sub 3/Ge prepared by chemical vapor deposition have been studied. Irradiation to a fluence of 3.4 x 10/sup 19/ n/cm/sup 2/ produces a decrease in the superconducting transition temperature T/sub c/ from 20.9 to 4.4 K and in the long-range order parameter S from 0.86 to 0.46, and an increase in the lattice parameter a/sub 0/ from 5.142 A to 5.174 A. For a fluence of 6.5 x 10/sup 19/ n/cm/sup 2/, most of the Nb/sub 3/Ge is transformed into a noncrystalline phase. The A15 phase is recovered after annealing.

• Research Organization: Brookhaven National Lab., Upton, NY (USA); Los Alamos Scientific Lab., NM (USA)
• DOE Contract Number: EY-76-C-02-0016
• OSTI ID: 5924371
• Report Number(s): BNL-26542; CONF-790653-14
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360106 -- Metals & Alloys-- Radiation Effects
656102* -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
BARYONS
BETA-W LATTICES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTARY PARTICLES
FAST NEUTRONS
FERMIONS
GERMANIUM ALLOYS
HADRONS
INTERMETALLIC COMPOUNDS
NEUTRONS
NIOBIUM ALLOYS
NIOBIUM BASE ALLOYS
NUCLEONS
PHYSICAL PROPERTIES
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
ULTRALOW TEMPERATURE
VARIATIONS
VERY LOW TEMPERATURE