Electronic density of states in amorphous zirconium alloys

Journal Article · Tue Feb 01 04:00:00 EST 1983 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.27.1596· OSTI ID:6316553

Missell, F P; Frota-Pessoa, S; Wood, J; Tyler, J; Keem, J E

We have produced amorphous Zr-Rh, Zr-Ru, and Zr-Re films by means of rf diode cosputtering techniques. Measurements were made of the superconducting transition temperature T/sub c/, the normal resistivity rho, and 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. For Zr-Rh and Zr-Re, N* exhibited an approximately linear decrease as the Zr fraction decreased. For Zr-Ru alloys the behavior was more complex. Estimating N for Zr-Rh alloys, we find it to be approximately the same in magnitude and composition dependence as the N for Zr-Cu alloys. We calculate the magnitude and composition dependence of N for Zr-Rh and Zr-Cu alloys with the use of a simple model and obtain good agreement with the experimental results.

• Research Organization: Energy Conversion Devices, Inc., 1675 W. Maple Rd., Troy, Michigan 48084
• OSTI ID: 6316553
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 27:3; 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
CHEMICAL COMPOSITION
CRITICAL FIELD
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRON-PHONON COUPLING
ELECTRONIC STRUCTURE
ENERGY-LEVEL DENSITY
EXPERIMENTAL DATA
FILMS
INFORMATION
MAGNETIC FIELDS
NUMERICAL DATA
PHYSICAL PROPERTIES
PLATINUM METAL ALLOYS
RHENIUM ALLOYS
RHODIUM ALLOYS
RUTHENIUM ALLOYS
SPUTTERING
SUPERCONDUCTIVITY
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
TYPE-II SUPERCONDUCTORS
ZIRCONIUM ALLOYS