Electronic structure, superconductivity, and spin fluctuations in the A15 compounds A/sub 3/B: A = V, Nb; B = Ir,Pt,Au

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

DOI:https://doi.org/10.1103/PhysRevB.27.1558· OSTI ID:6062865

Jarlborg, T; Junod, A; Peter, M

The electronic structure of six A15 compounds V/sub 3/Ir, V/sub 3/Pt, V/sub 3/Au, Nb/sub 3/Ir, Nb/sub 3/Pt, and Nb/sub 3/Au has been determined by means of self-consistent semirelativistic linear muffin-tin orbital band calculations. Parameters related to superconductivity such as electron-phonon coupling, transition temperature, electronic specific heat, and magnetic exchange enhancement are derived from the electronic-structure results. Generally the results obtained agree well with experimental values, with the exception of Nb/sub 3/Pt and V/sub 3/Au. In the former compound the density of states (DOS) has a sharp increase at E/sub F/ making the exact DOS value uncertain. In V/sub 3/Au the high calculated T/sub c/ and the Stoner factor indicate that spin fluctuations may be limiting the T/sub c/. .AE

• Research Organization: Departement de Physique de la Matiere Condensee, Universite de Geneve, 32 Boulevard d'Yvoy, CH-1211 Geneve 4, Switzerland
• OSTI ID: 6062865
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Vol. 27:3
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
IRIDIUM COMPOUNDS
ELECTRONIC STRUCTURE
SUPERCONDUCTIVITY
VANADIUM COMPOUNDS
PLATINUM COMPOUNDS
GOLD COMPOUNDS
NIOBIUM COMPOUNDS
BAND THEORY
BETA-W LATTICES
ELECTRON-PHONON COUPLING
ELECTRONIC SPECIFIC HEAT
FLUCTUATIONS
MUFFIN-TIN POTENTIAL
SELF-CONSISTENT FIELD
SPIN
TRANSITION TEMPERATURE
ANGULAR MOMENTUM
CRYSTAL LATTICES
CRYSTAL STRUCTURE
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
POTENTIALS
SPECIFIC HEAT
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
VARIATIONS
360104* - Metals & Alloys- Physical Properties
656102 - Solid State Physics- Superconductivity- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena- (-1987)