Superconductivity, magnetic susceptibility, and electronic properties of amorphous (Mo/sub 1-x/Ru/sub x/)/sub 80/P/sub 20/ alloys obtained by liquid quenching

Journal Article · Sat Jul 01 04:00:00 EDT 1978 · Phys. Rev., B; (United States)

DOI:https://doi.org/10.1103/PhysRevB.18.206· OSTI ID:6797256

Johnson, W L; Poon, S J; Durand, J; Duwez, P

Results of x-ray diffraction, transmission-electron diffraction, and crystallization studies on amorphous (Mo/sub 1-x/Ru/sub x/)/sub 80/P/sub 20/ alloys obtained by liquid quenching are presented and discussed. The alloys are all found to be superconducting with transition temperatures ranging from approx. 3 to approx. 9 /sup 0/K. The variation of T/sub c/ with alloy composition is compared to that obtained by Collver and Hammond for vapor-quenched transition-metal films. Results of magnetic-susceptibility measurements are used to estimate the variation of the electronic density of states at the Fermi level N(0) from the Pauli paramagnetic contribution. The relationship between the variation of T/sub c/ and N(0) is discussed in terms of the microscope theory of superconductivity. Finally, results of measurements of the upper critical field H/sub 2/c, and the normal-state electronic transport properties are presented and compared with recent theoretical models for amorphous superconductors.

• Research Organization: W. M. Keck Laboratory of Engineering Materials, California Institute of Technology, Pasadena, California 91125
• OSTI ID: 6797256
• Journal Information: Phys. Rev., B; (United States), Journal Name: Phys. Rev., B; (United States) Vol. 18:1; ISSN PLRBA
• 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
AMORPHOUS STATE
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRONIC STRUCTURE
HEAT TREATMENTS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MOLYBDENUM COMPOUNDS
MOLYBDENUM PHOSPHIDES
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PHYSICAL PROPERTIES
PNICTIDES
QUENCHING
RUTHENIUM COMPOUNDS
RUTHENIUM PHOSPHIDES
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE