Orbital selectivity of the kink in the dispersion of Sr2RuO4
H. Iwasawa, Y. Aiura, T. Saitoh, I. Hase, S. I. Ikeda, Y. Yoshida, H. Bando, M. Higashiguchi, Y. Miura, X. Y. Cui, K. Shimada, H. Namatame, M. Taniguchi
Abstract
We present detailed energy dispersions near the Fermi level on the monolayer perovskite ruthenate Sr2RuO4, determined by high-resolution angle-resolved photoemission spectroscopy. An orbital selectivity of the kink in the dispersion of Sr2RuO4 has been found: A kink for the Ru 4dxy orbital is clearly observed, but not for the Ru 4dyz and 4dzx ones. The result provides insight into the origin of the kink.
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