paper

Photoemission Quasi-Particle Spectra of Sr $_{2}$ RuO $_{4}$

arXiv:cond-mat/9909433 · doi:10.1103/PhysRevLett.84.1591

Abstract

Multi-band quasi-particle calculations based on perturbation theory and dynamical mean field methods show that the creation of a photoemission hole state in Sr $_{2}$ RuO $_{4}$ is associated with a highly anisotropic self-energy. Since the narrow Ru-derived $d_{x z, y z}$ bands are more strongly distorted by Coulomb correlations than the wide $d_{x y}$ band, charge is partially transferred from $d_{x z, y z}$ to $d_{x y}$ , thereby shifting the $d_{x y}$ van Hove singularity close to the Fermi level.

4 pages, to be published in PRB Rapid Comm

Photoemission Quasi-Particle Spectra of Sr2​RuO4​

Abstract

Photoemission Quasi-Particle Spectra of Sr $_{2}$ RuO $_{4}$