Ultrathin bcc iron films grown epitaxially on W(110) have been investi
gated by means of angle and spin resolving photoelectron spectroscopy.
The electron spin polarization, spin resolved intensities and corresp
onding band structure have been experimentally investigated in depende
nce of the film thickness, exciting photon energy and variation of the
photoelectron detection angle. Additionally, photoemission calculatio
ns for bulk iron have been performed in the framework of a relativisti
c one-step formalism. The comparison between measured and calculated s
pectra turns out to be in very good agreement for different excitation
energies as well as for different angles of emission.