Orbital selectivity of the kink in the dispersion of Sr2RuO4
/ Authors
H. Iwasawa, H. Iwasawa, Y. Aiura, T. Saitoh, Izumi Hase, Shinichi Ikeda, Y. Yoshida, H. Bando, Mitsuharu Higashiguchi, Y. Miura
and 5 more authors
X. Cui, K. Shimada, H. Namatame, M. Taniguchi, Masaki Taniguchi
/ Abstract
We present detailed energy dispersions near the Fermi level on the monolayer perovskite ruthenate ${\mathrm{Sr}}_{2}{\mathrm{RuO}}_{4}$, determined by high-resolution angle-resolved photoemission spectroscopy. An orbital selectivity of the kink in the dispersion of ${\mathrm{Sr}}_{2}{\mathrm{RuO}}_{4}$ has been found: A kink for the Ru $4{d}_{xy}$ orbital is clearly observed, but not for the Ru $4{d}_{yz}$ and $4{d}_{zx}$ ones. The result provides insight into the origin of the kink.
Journal: Physical Review B