Abstract
We systematically investigate the spin-orbit coupling-induced band splitting originating from inversion symmetry breaking at the interface between a Co monolayer and 4
(Tc, Ru, Rh, Pd, and Ag) or 5
(Re, Os, Ir, Pt, and Au) transition metals. In spite of the complex band structure of these systems, the odd-in-
spin splitting of the bands displays striking similarities with the much simpler Rashba spin-orbit coupling picture. While we do not find salient correlations between the interfacial magnetic anisotropy and the odd-in-
spin-splitting of the bands, we establish a clear connection between the overall strength of the band splitting and the charge transfer between the
-orbitals at the interface. Furthermore, we show that the spin splitting of the Fermi surface scales with the induced orbital moment, weighted by the spin-orbit coupling.