X-ray photoemission study of CeTIn(5) (T = Co, Rh, Ir).
We investigated CeTIn5 (T = Co, Rh, Ir) using temperature- and angle-dependent x-ray photoemission spectroscopy. The Ce 3d core level has a very similar shape for all three materials and is indicative of weak f-hybridization. The spectra were analyzed using a simplified version of the Anderson impurity model, which yields a Ce 4f occupancy that is larger than 0.9. The temperature dependence shows a continuous, irreversible and exclusive broadening of the Ce 3d peaks, due to oxidation of Ce at the surface.
Institute for Solid State Research, IFW-Dresden, PO Box 270116, DE-01171 Dresden, Germany.
U
U
Treske
M S
MS
Khoshkhoo
F
F
Roth
M
M
Knupfer
E D
ED
Bauer
J L
JL
Sarrao
B
B
Büchner
A
A
Koitzsch
D000497:Alloys / Q000737:chemistry; D003198:Computer Simulation; D004553:Electric Conductivity; D008670:Metals / Q000737:chemistry*; D008956:Models, Chemical; D008958:Models, Molecular; D056951:Photoelectron Spectroscopy / Q000379:methods*
D000497:Alloys; D008670:Metals