Work

Overscreening in Hubbard electron systems

Year: 1998

Type: preprint

Abstract: We show that doping-induced charge fluctuations in strongly correlated Hubbard electron systems near the 1/2-filled, insulating limit cause overscreening of the electron-electron Coulomb repulsion. The resulting attractive screened interaction potential supports d_{x^2-y^2}-pairing with a strongly peaked, doping dependent pairing strength at lower doping, followed by s-wave pairing at larger doping levels.

Source: arXiv (Cornell University)

DOI: 10.48550/arxiv.cond-mat/9805133

Authors: Schüttler, H. -B., Gröber, C., Evertz, H. G., Hanke, W.

Institutions: University of Georgia, University of Würzburg, The University of Tokyo

Language: English

Topic: Physics of Superconductivity and Magnetism

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, Bundesministerium für Bildung und Forschung, Division of Materials Research

Award: Coulomb Correlations and Electron-Phonon Coupling in CuprateSuperconductors

OpenAlex ID: W1636092822

Cites:

Cited by: 1

Related to: 10