Mixed Valence Quasiparticles in CuO_{2} Planes

• Authors: J. Bała , A.M. Oleś
• Languages of publication: EN

Abstracts

EN

The motion of a single hole doped to a CuO_{2} plane of a high temperature superconductor is described by a spin-fermion model which treats explicitly the hybridization with the upper Hubbard band. One finds that sectors of Zhang-Rice bound states coexist with reasonably damped oxygen and copper-like quasiparticles, with a considerable transfer of the spectral weight to the upper Hubbard band. The oxygen states have small dispersions and can be identified in the angle-resolved photoemission experiments for Bi_{2}Sr_{2}CaCu_{2}O_{8}.

Keywords

EN

74.25.Jb; 75.30.Ds; 75.10.Lp

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1997
• Volume: 91
• Issue: 2
• Pages: 333-336

Dates

published

1997-02

Contributors

author

J. Bała

• Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland

author

A.M. Oleś

• Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland