Search for superconductivity in an extended Hubbard model

Journal Article · Mon May 01 04:00:00 EDT 1989 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.39.9671· OSTI ID:6064180

Coppersmith, S N

Extensions of the Gutzwiller variational method are used to study whether substantial nearest-neighbor repulsion between holes on a copper-oxygen lattice in two dimensions leads to simple s-wave superconductivity. It is found that the simplest one-parameter s-wave superconducting wave functions do not lower the energy with respect to the normal state.

• Research Organization: ATandT Bell Laboratories, Murray Hill, New Jersey 07974
• OSTI ID: 6064180
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 39:13; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

656100* -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
ELEMENTS
FUNCTIONS
HAMILTONIANS
HOLES
MATHEMATICAL OPERATORS
NONMETALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PARTIAL WAVES
QUANTUM OPERATORS
S WAVES
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
TWO-DIMENSIONAL CALCULATIONS
VARIATIONAL METHODS
WAVE FUNCTIONS