Observation of Conduction Band Satellite of Ni Metal by 3p-3d Resonant Inverse Photoemission Study

摘要

Resonant inverse photoemission spectra of Ni metal have been obtained acrossthe Ni 3$p$ absorption edge. The intensity of Ni 3$d$ band just above Fermiedge shows asymmetric Fano-like resonance. Satellite structures are found atabout 2.5 and 4.2 eV above Fermi edge, which show resonant enhancement at theabsorption edge. The satellite structures are due to a many-body configurationinteraction and confirms the existence of 3$d^8$ configuration in the groundstate of Ni metal.