Possible superconductivity in nearly antiferromagnetic itinerant fermion systems

Journal Article · Mon Dec 01 00:00:00 EST 1986 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.34.7716· OSTI ID:6910077

Beal-Monod, M T; Bourbonnais, C; Emery, V J

Strong spin fluctuations arising in itinerant fermion systems close to a magnetic instability may induce or inhibit superconductivity depending on the nesting wave vector q/sub 0/ for which the instability occurs. If chemically bondq/sub 0/chemically bond is small but finite, triplet pairing is favored and singlet pairing is suppressed as efficiently as in nearly ferromagnetic systems (q/sub 0/ = 0). If chemically bondq/sub 0/chemically bond is large, there is a repulsive contribution from backward scattering by which triplet as well as singlet pairings are strongly depressed. The cases of UPt/sub 3/, CePb/sub 3/, and some organic compounds are considered.

• Research Organization: Laboratoire de Physique des Solides, Btiment 510, Universite Paris-Sud, 91405 Orsay, France
• OSTI ID: 6910077
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Vol. 34:11
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CERIUM ALLOYS
SUPERCONDUCTIVITY
LEAD ALLOYS
PLATINUM ALLOYS
URANIUM ALLOYS
ANTIFERROMAGNETIC MATERIALS
AUGMENTATION
FLUCTUATIONS
INHIBITION
MAGNONS
ORGANIC COMPOUNDS
PAIRING INTERACTIONS
SPIN
SUPERCONDUCTORS
ACTINIDE ALLOYS
ALLOYS
ANGULAR MOMENTUM
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
INTERACTIONS
MAGNETIC MATERIALS
MATERIALS
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
PLATINUM METAL ALLOYS
QUASI PARTICLES
RARE EARTH ALLOYS
VARIATIONS
360104* - Metals & Alloys- Physical Properties
656100 - Condensed Matter Physics- Superconductivity