CO INTERACTIONS WITH FERROMAGNETIC SURFACES

Electronic and magnetic interactions of carbon monoxide with different ferromagnetic substrates (amorphous materials, crystals, and thin fil ms) are investigated by means of angle and spin resolving photoelectro n spectroscopy. On none of these surfaces, an exchange splitting of th e CO orbitals is present indicating only a weak magnetic interaction o f the substrate d bands with the occupied molecular orbitals. Via the spin analysis, a differentiation between molecular adsorption and diss ociation was possible. (C) 1995 American Institute of Physics.