title: Band-structure trend in hole-doped cuprates and correlation with T(c max).
abstract: By calculation and analysis of the bare conduction bands in a large number of hole-doped high-temperature superconductors, we have identified the range of the intralayer hopping as the essential, material-dependent parameter. It is controlled by the energy of the axial orbital, a hybrid between Cu 4s, apical-oxygen 2p(z), and farther orbitals. Materials with higher T(c max) have larger hopping ranges and axial orbitals more localized in the CuO2 layers.
authors.affiliation: Max-Planck-Institut für Festkörperforschung, D-70506 Stuttgart, Germany.
authors.forename: E
authors.initials: E
authors.lastname: Pavarini
authors.forename: I
authors.initials: I
authors.lastname: Dasgupta
authors.forename: T
authors.initials: T
authors.lastname: Saha-Dasgupta
authors.forename: O
authors.initials: O
authors.lastname: Jepsen
authors.forename: O K
authors.initials: OK
authors.lastname: Andersen