Inter-orbital singlet pairing in Sr${}_2$RuO${}_4$: a Hund's superconductor

Stefan Käser, Hugo U. R. Strand, Nils Wentzell +3

We study the superconducting gap function of Sr${}_2$RuO${}_4$. By solving the linearized Eliashberg equation with a correlated pairing vertex extracted from a dynamical mean-field cal…