title: Coulomb-enhanced spin-orbit splitting: the missing piece in the Sr2RhO4 puzzle.
abstract: The outstanding discrepancy between the measured and calculated (local-density approximation) Fermi surfaces in the well-characterized, paramagnetic Fermi liquid Sr2RhO4 is resolved by including the spin-orbit coupling and Coulomb repulsion. This results in an effective spin-orbit coupling constant enhanced 2.15 times over the bare value. A simple formalism allows discussion of other systems. For Sr2RhO4, the experimental specific-heat and mass enhancements are found to be 2.2.
authors.affiliation: Max-Planck Institut für Festkörperforschung, D-70569 Stuttgart, Germany.
authors.forename: Guo-Qiang
authors.initials: GQ
authors.lastname: Liu
authors.forename: V N
authors.initials: VN
authors.lastname: Antonov
authors.forename: O
authors.initials: O
authors.lastname: Jepsen
authors.forename: O K
authors.initials: OK
authors.lastname: Andersen