Pressure dependence of superconductivity in amorphous Zr/sub x/Ni/sub 100-//sub x/ alloys
Journal Article
·
· Phys. Rev. B: Condens. Matter; (United States)
The pressure dependence of superconducting transition temperature T/sub c/ of amorphous Zr/sub x/Ni/sub 100-//sub x/ alloys (x = 80, 71, 67, 63.5 60, 55) has been studied under quasihydrostatic pressure to 8 GPa. For amorphous samples having Zr concentration x>60, partialT/sub c//partialp is possitive in sign and it decreases nonlinearly with increasing x, whereas partialT/sub c//partialP is negative in sign for 55 at. % Zr concentration. These results were explained in terms of character change of the conduction carriers at the Fermi surface. In addition, for Zr/sub 80/Ni/sub 20/ we observed the formation of the ..omega..-Zr phase for pressures greater than 2 GPa.
- Research Organization:
- Brock University, Department of Physics, St. Catharines, Ontario, Canada L2S 3A1
- OSTI ID:
- 6230741
- Journal Information:
- Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 39:7; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
AMORPHOUS STATE
CALORIMETRY
CHARGE CARRIERS
COHERENT SCATTERING
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ENERGY LEVELS
FERMI LEVEL
NICKEL ALLOYS
PHYSICAL PROPERTIES
PRESSURE DEPENDENCE
SCATTERING
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
VERY HIGH PRESSURE
X-RAY DIFFRACTION
ZIRCONIUM ALLOYS
360104* -- Metals & Alloys-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
AMORPHOUS STATE
CALORIMETRY
CHARGE CARRIERS
COHERENT SCATTERING
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ENERGY LEVELS
FERMI LEVEL
NICKEL ALLOYS
PHYSICAL PROPERTIES
PRESSURE DEPENDENCE
SCATTERING
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
VERY HIGH PRESSURE
X-RAY DIFFRACTION
ZIRCONIUM ALLOYS