CeFePO: f-d hybridization and quenching of superconductivity.
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.
Holder
M G
MG
Institut für Festkörperphysik, Technische Universität Dresden, D-01062 Dresden, Germany.
Jesche
A
A
Lombardo
P
P
Hayn
R
R
Vyalikh
D V
DV
Danzenbächer
S
S
Kummer
K
K
Krellner
C
C
Geibel
C
C
Kucherenko
Yu
Y
Kim
T K
TK
Follath
R
R
Molodtsov
S L
SL
Laubschat
C
C