Electronic structure of YBa/sub 2/Cu/sub 3/O/sub 7-//sub delta/ including strong correlation effects

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

DOI:https://doi.org/10.1103/PhysRevB.39.9675· OSTI ID:6114449

Costa-Quintana, J; Lopez-Aguilar, F; Balle, S; Salvador, R

The occupied and unoccupied valence-band density of states of YBa/sub 2/Cu/sub 3/O/sub 7-//sub delta/ is determined considering a coherent potential which includes the Coulomb intrasite d-d correlation. The p states tend to be all occupied and, as a consequence, the most localized d states with the XZ symmetry tend to be unoccupied giving rise to an upper Hubbard band. This picture is in good agreement with the direct and inverse photoemission spectroscopies.

• Research Organization: Departamento de Fiiaasica, Grupo de Electromagnetismo, Universidad Autonoma de Barcelona, Bellaterra E-08193 Barcelona, Spain
• OSTI ID: 6114449
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Vol. 39:13
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BARIUM OXIDES
ELECTRONIC STRUCTURE
COPPER OXIDES
YTTRIUM OXIDES
CORRELATIONS
ELECTRON-ELECTRON INTERACTIONS
ENERGY-LEVEL DENSITY
SUPERCONDUCTIVITY
VALENCE
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
OXIDES
OXYGEN COMPOUNDS
PARTICLE INTERACTIONS
PHYSICAL PROPERTIES
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
360204* - Ceramics
Cermets
& Refractories- Physical Properties
656100 - Condensed Matter Physics- Superconductivity