Weak 3p-3dResonance in the Valence Band Photoemission of Manganese Phosphide

The weak 3 p -3 d resonance in the photoemission of MnP observed around the threshold of the Mn 3 p excitation shows an “energy-band-type” aspect, i.e. the coherent decay of the photoproduced electron-3 p -hole pair into the ionization of a single valence band electron. The resonance occurs all over the valence-band region but no satellite due to the two-hole bound state is found. An appreciable fraction of the apparent resonant enhancement in the bands arising from the 3 s and 3 p states of P is ascribed to the superimposed M 2,3 M 4,5 M 4,5 super-Coster-Kronig band. The valence-band spectra show no significant change in the spectral shape as measured above and below the Curie temperature.