Electronic density of states in amorphous Zr-Pd and Zr-Ni alloys

Journal Article · Tue May 01 04:00:00 EDT 1984 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.29.5207· OSTI ID:6919126

Missell, F P; Keem, J E

We have produced amorphous Zr-Pd and Zr-Ni films by means of rf diode cosputtering techniques. Measurements were made of the superconducting transition temperature T/sub c/, the normal resistivity rho, and the upper critical field H/sub c/2. From rho and (dH/sub c/2/dT)c we determined the dressed density of states at the Fermi level N( = N(1+lambda), where lambda is the electron-phonon coupling constant and N is the bare density of states. In contrast to amorphous Zr-Cu and Zr-Rh alloys, a direct proportionality between T/sub c/ and N( was not observed for these alloys. Thus the composition dependence of N( and T/sub c/ is not consistent with the suggestion that N( is the most important factor in determining T/sub c/.

• Research Organization: Energy Conversion Devices, Incorporated, Troy, Michigan 48084
• OSTI ID: 6919126
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 29:9; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
AMORPHOUS STATE
CRITICAL FIELD
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRON-PHONON COUPLING
ENERGY-LEVEL DENSITY
EXPERIMENTAL DATA
FILMS
INFORMATION
MAGNETIC FIELDS
NICKEL ALLOYS
NUMERICAL DATA
PALLADIUM ALLOYS
PHYSICAL PROPERTIES
PLATINUM METAL ALLOYS
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
ZIRCONIUM ALLOYS