Orbital selectivity of the kink in the dispersion of Sr2RuO4

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 4d_xy orbital is clearly observed, but not for the Ru 4d_yz and 4d_zx ones. The result provides insight into the origin of the kink.

5 pages, 4 figures. Accepted for publication in Phys. Rev. B

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Cited by in corpus (15)

• Electronic structure of quantum materials studied by angle-resolved photoemission spectroscopy
• Kinks in the dispersion of strongly correlated electrons
• High-resolution photoemission on Sr2RuO4 reveals correlation-enhanced effective spin-orbit coupling and dominantly local self-energies
• Magnetic response of Sr${}_2$RuO${}_4$: quasi-local spin fluctuations due to Hund's coupling
• Orbital differentiation in Hund metals
• Quasiparticle Interference and Strong Electron-Mode Coupling in the Quasi-One-Dimensional Bands of Sr${}_2$RuO${}_4$
• Lattice dynamics and electron-phonon coupling in Sr2RuO4
• Kinks in the electronic specific heat
• Emergence of a common energy scale close to the orbital-selective Mott transition
• Quasiparticle self-consistent GW calculation of Sr${}_2$RuO${}_4$ and SrRuO${}_3$:
• Interplay between spin-orbit coupling and van Hove singularity in the Hund's metallicity of Sr${}_2$RuO${}_4$
• Surface and bulk electronic structure of unconventional superconductor Sr_2RuO_4: unusual splitting of the beta-band
• Low-energy perspective on two-orbital Hund metals and the case of LaNiO2
• Fermi surface and kink structures in Sr${}_4$Ru${}_3$O${}_{10}$ revealed by synchrotron-based ARPES
• Energy-scale cascade and correspondence between Mott and Kondo lattice physics