title: CeFePO: f-d hybridization and quenching of superconductivity.
abstract: As a homologue to the new, Fe-based type of high-temperature superconductors, the electronic structure of the heavy-fermion compound CeFePO was studied by means of angle-resolved resonant photoemission. It was experimentally found-and later on confirmed by local-density approximation (LDA) as well as dynamical mean-field theory (DMFT) calculations-that the Ce 4f states hybridize to the Fe 3d states of d{3z{2}-r{2}} symmetry near the Fermi level that discloses their participation in the occurring electron-correlation phenomena and provides insight into mechanism of superconductivity in oxopnictides.
authors.affiliation: Institut für Festkörperphysik, Technische Universität Dresden, D-01062 Dresden, Germany.
authors.forename: M G
authors.initials: MG
authors.lastname: Holder
authors.forename: A
authors.initials: A
authors.lastname: Jesche
authors.forename: P
authors.initials: P
authors.lastname: Lombardo
authors.forename: R
authors.initials: R
authors.lastname: Hayn
authors.forename: D V
authors.initials: DV
authors.lastname: Vyalikh
authors.forename: S
authors.initials: S
authors.lastname: Danzenbächer
authors.forename: K
authors.initials: K
authors.lastname: Kummer
authors.forename: C
authors.initials: C
authors.lastname: Krellner
authors.forename: C
authors.initials: C
authors.lastname: Geibel
authors.forename: Yu
authors.initials: Y
authors.lastname: Kucherenko
authors.forename: T K
authors.initials: TK
authors.lastname: Kim
authors.forename: R
authors.initials: R
authors.lastname: Follath
authors.forename: S L
authors.initials: SL
authors.lastname: Molodtsov
authors.forename: C
authors.initials: C
authors.lastname: Laubschat