Band-like dispersion in the valence band photoemission spectra of K 6C60(110) films

Using angle resolved photoemission we show that band-like states in K6C60(110) films at 40 K survive in spite of the strong electron-phonon coupling expected in fullerides that should give rise to polaron formation: the momentum dispersion of the HOMO and LUMO features agrees quite well with band structure calculations.