Abstract
Ultrathin vanadium films epitaxially grown on Fe(1 0 0) have been studied by inverse photoemission spectroscopy excited by spin-polarized electrons in the 5–10 eV kinetic energy range. Two experimental evidences are clearly observed: a strong reduction of the Fe signal upon V deposition and a shift of the image-potential surface state resonance which follows the work function change. No other transitions induced by the overlayer are detected. Both majority and minority-spin electron beams are strongly attenuated when passing through the V film. The attenuation length is found to be as short as (3 ± 0.5) A ̊ and spin-independent, within the experimental accuracy.
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