Photochemical hole burning is a special type of saturation spectroscopy in the optical
domain having many analogies with NMR methods. The holes, which are burnt with laser …

In this paper we describe the details of several model Hamiltonian cluster calculations,
suitable for describing various spectroscopic data of CuO. By treating the dd Coulomb and …

We analyze in more detail a model which describes spins localized on the Cu sites and
carriers of oxygen character which has been proposed for high-temperature …

We have performed resonance photoemission, angle-resolved photoemission, and core-
level photoemission studies of single-crystalline CoO. On the one hand, strong correlation …

High-energy electron energy-loss spectroscopy in transmission has been used to obtain
information on the symmetry of unoccupied electronic states in the new high-T c …

We have carried out angle-resolved photoemission spectroscopy on single crystals of YBa 2
Cu 3 O 6.9. The crystals were cleaved in situ, under ultrahigh vacuum while the sample …

The two-dimensional character of the electronic structure of MN-Cu-O alloys, with M= La, Y
and N= Ba, Sm,..., is shown to favor the formation of ''acoustic''plasmons at energies above …

Energy parameters for a CuO 2 sheet, taken to be prototypic of the high-temperature
superconductors, are derived from semiempirical and ab initio sources. Intra-atomic …

We have studied a two-dimensional multiband Hubbard model describing CuO 2 sheets in
the high-T c oxides. The simulations were performed for a grand-canonical ensemble on …

Publisher Summary This chapter reviews the electronic structure of the La 2–x M x CuO 4–y
(M= Ba, Sr, Ca) and RBa 2 Cu 3 O 7–δ (R= Y, Eu, Gd,…) systems. Emphasis is placed on …