PHOTOEMISSION AND INVERSE-PHOTOEMISSION SPECTROSCOPY OF V(100)

The electronic structure of the V(100) surface has been studied by mea ns of angularly resolved photoelectron spectroscopy (ARUPS) and moment um- (k-) resolved inverse photoemission spectroscopy (KRIPES). A narro w peak in the photoemission spectrum which is seen at the Fermi level is attributed to a transition from a surface resonance. The existence of this surface resonance at the Fermi level of the V(100) surface is potentially very important for the occurrence of the expected magnetic ordering of this surface. The energy of the critical point H-25', whi ch defines the top of the unoccupied part of the 3d band, has been det ermined to be within 3.0-3.2 eV above E(F) from the normal incidence K RIPES spectra.