Nesting mechanism for [ital d]-symmetry superconductors

Journal Article · Wed Feb 01 04:00:00 EST 1995 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.51.3797· OSTI ID:6849170

Ruvalds, J; Rieck, C T; Tewari, S; Thoma, J ^[1]; Virosztek, A ^[2]

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1. Physics Department, University of Virginia, Charlottesville, Virginia 22901 (United States)
2. Research Institute for Solid State Physics, 1525 Budapest 114, POB 49 (Hungary)

A nested Fermi surface with nearly parallel orbit segments is found to yield a singlet [ital d]-wave superconducitng state at high temperatures for a restricted range of the on-site Coulomb repulsion that avoids the competing spin-density-wave instability. The computed superconducting transition temperature drops dramatically as the nesting vector is decreased, in accord with recent photoemission data on the Bi2212 and Bi2201 cuprates. Superconducting transition temperatures in the 100 K range are produced by the nesting mechanism in the [ital leading] [ital order] pairing interaction caused by exchange of spin fluctuations.

• DOE Contract Number: FG05-84ER45113
• OSTI ID: 6849170
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 51:6; ISSN 0163-1829; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

665411* -- Basic Superconductivity Studies-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BISMUTH COMPOUNDS
BISMUTH OXIDES
CHALCOGENIDES
COULOMB FIELD
D WAVES
ELECTRIC FIELDS
EMISSION
ENERGY LEVELS
FERMI LEVEL
HIGH-TC SUPERCONDUCTORS
OXIDES
OXYGEN COMPOUNDS
PARTIAL WAVES
PHOTOEMISSION
PHYSICAL PROPERTIES
SECONDARY EMISSION
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE