Direct observation of quasi-particle band in CeIrIn${}_5$: Angle-resolved photoemission spectroscopy study

Shin-ichi Fujimori, Atsushi Fujimori, Kenya Shimada +11

We have performed a high-resolution angle resolved Ce 4$d-4f$ resonant photoemission experiment on the heavy fermion superconductor CeIrIn${}_5$. We have observed a quasi-particle ba…