  We report high-resolution hard x-ray photoemission spectroscopy results on
(Ga,Mn)As films as a function of Mn doping. Supported by theoretical
calculations we identify, over the entire 1% to 13% Mn doping range, the
electronic character of the states near the top of the valence band.
Magnetization and temperature dependent core-level photoemission spectra reveal
how the delocalized character of the Mn states enables the bulk ferromagnetic
properties of (Ga,Mn)As.
