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