Charge-transfer strings in the extended Hubbard model for copper oxide superconductors

Journal Article · Mon Aug 01 00:00:00 EDT 1988 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.38.2854· OSTI ID:6918353

Schuettler, H

Near the Cu/sup 2+/..-->..Cu/sup +/ valence instability, there are low-lying excitations in the extended Hubbard model for CuO/sub 2/ superconductors which consist of spatially extended, contiguous strings of Cu/sup +/-O/sup -/ pairs. Such strings can be electrically neutral or carry charges +e or -e. Results for the string band structure, their internal excitations, and possible attractive string-pairing interactions are presented. Important experimental implications are discussed.

• Research Organization: Center for Simulational Physics, Department of Physics and Astronomy, University of Georgia, Athens, Georgia 30602
• OSTI ID: 6918353
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Vol. 38:4
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COPPER OXIDES
BAND THEORY
SUPERCONDUCTIVITY
SUPERCONDUCTORS
CHARGE STATE
HAMILTONIANS
HYBRIDIZATION
PAIRING INTERACTIONS
CHALCOGENIDES
COPPER COMPOUNDS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
INTERACTIONS
MATHEMATICAL OPERATORS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
QUANTUM OPERATORS
TRANSITION ELEMENT COMPOUNDS
656100* - Condensed Matter Physics- Superconductivity