Hole superconductivity in a generalized two-band model

Journal Article · Mon Jun 01 00:00:00 EDT 1992 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.45.12556· OSTI ID:7105331

Hong, X Q; Hirsch, J E ^[1]

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1. Department of Physics, University of California, San Diego, La Jolla, California 92093 (United States)

We study superconductivity in a two-band model that generalizes the model introduced by Suhl, Matthias, and Walker: All possible interaction terms coupling both bands are included. The pairing interaction is assumed to originate in the momentum dependence of the intraband interactions that arises in the model of hole superconductivity. The model generically displays a single critical temperature and two gaps, with the larger gap associated with the band with strongest holelike character to the carriers. The dependence of the critical temperature and of the magnitudes of the gaps on the various parameters in the Hamiltonian is studied.

• OSTI ID: 7105331
• Journal Information: Physical Review, B: Condensed Matter; (United States), Vol. 45:21; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
HIGH-TC SUPERCONDUCTORS
MATHEMATICAL MODELS
CRITICAL TEMPERATURE
ELECTRON-ELECTRON INTERACTIONS
ENERGY GAP
HOLES
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
PARTICLE INTERACTIONS
PHYSICAL PROPERTIES
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
665411* - Basic Superconductivity Studies- (1992-)