Eur. Phys. J. B 10, 197-200 (1999)
https://doi.org/10.1007/s100510050845

Origin and doping dependence of the photoemission pseudogap in Cu oxides

Grenoble High Magnetic Field Laboratory, MPI-FKF and CNRS, BP 166, 38042 Grenoble, France

Corresponding author: ^a nunezreg@labs.polycnrs-gre.fr

Received: 9 April 1999
Published online: 15 July 1999

Abstract

A recent report on ARPES on insulating , compared to previous data from and Dy-doped , sheds new light on the origin of the anisotropic pseudogap observed in the normal state of underdoped cuprate oxides. The energy dispersion of the insulator is attributed to strong AF correlations enhanced by the diagonal hopping between magnetic sites, which is progressively deformed by the possibility of nearest neighbour hopping, that increases with hole doping.