  We present the temperature and layer dependent electronic structure of a
20-layer EuS(100)-film using a combination of first-principles and model
calculation, the latter based on the ferromagnetic Kondo-lattice. The
calculated thickness-dependent Curie temperature agrees very well with
experimental data. The projected 5d-bandstructure is at finite temperatures
strongly influenced by damping effects due to spin exchange processes.
Spin-split unoccupied 5d-surfaces states are found with a Stoner-like
collapsing for increasing temperature towards the Curie point and with an
exponential decay of spectral weight with increasing distance from the surface.
