Superconducting properties of VN/sub x/ sputtered films including spin fluctuations and radiation damage of stoichiometric VN

Journal Article · Mon Aug 01 00:00:00 EDT 1988 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.38.2333· OSTI ID:7145303

Gray, K E; Kampwirth, R T; Capone, II, D W; Vaglio, R; Zasadzinski, J

We have made well-ordered, stoichiometric films of VN using reactive sputtering and studied the effects of disordering due to deviations from stoichiometry and radiation damage. An unexpected local minimum of T/sub c/ for the well-ordered, stoichiometric VN was found. The principal result was that the peak in T/sub c/ for substoichiometric VN/sub 0.96/ can be shown to be consistent with a competition between spin fluctuations and electron--phonon coupling, but we find the effect of the former is smaller than previously predicted. The superconducting properties measured in radiation-damaged VN have been extrapolated to pure, stoichiometric VN.

• Research Organization: Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439
• OSTI ID: 7145303
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Vol. 38:4
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
VANADIUM NITRIDES
PHYSICAL RADIATION EFFECTS
SUPERCONDUCTIVITY
ELECTRON-PHONON COUPLING
FLUCTUATIONS
HIGH VACUUM
SPIN
SPUTTERING
STOICHIOMETRY
SUPERCONDUCTING FILMS
TRANSITION TEMPERATURE
ULTRALOW TEMPERATURE
X-RAY DIFFRACTION
ANGULAR MOMENTUM
COHERENT SCATTERING
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
FILMS
NITRIDES
NITROGEN COMPOUNDS
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
PNICTIDES
RADIATION EFFECTS
SCATTERING
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
VANADIUM COMPOUNDS
VARIATIONS
360204* - Ceramics
Cermets
& Refractories- Physical Properties
360206 - Ceramics
Cermets
& Refractories- Radiation Effects
656100 - Condensed Matter Physics- Superconductivity