  Due to the separation between the spin and the orbital screening scales, the
normal state of Hund's metals at ambient temperature can be loosely
characterized as a partially coherent state with fluctuating spins and quenched
orbital moments. With the aim to characterize this situation more precisely, we
investigate the Kondo-Kanamori impurity model that describes the low-energy
local physics of three-orbital Hund's metals occupied by two or four electrons.
Within this model one can diminish the mixed spin-orbital terms and thereby
enhance the separation between the two screening scales, allowing a more
precise investigation of the intermediate state. Using the numerical
renormalization group we calculate the impurity entropy as well as the
temperature and frequency dependence of the spin and the orbital
susceptibilities. We uncover a non-Fermi-liquid two-channel overscreened SU(3)
fixed point that controls the behavior in the intermediate regime. We discuss
its fingerprints in the frequency dependence of local orbital susceptibility
and the shape of the spectral function.
