Abstract
We have measured valence-band spectra of a thick Mn metal film deposited on Si(111) by means of resonant photoemission across the $\mathrm{Mn}\phantom{\rule{0.2em}{0ex}}2p\ensuremath{\rightarrow}3d$ absorption edge. A resonant Raman-Auger signal is detected for excitation energies down to $3.8\phantom{\rule{0.3em}{0ex}}\mathrm{eV}$ below the Mn ${L}_{3}$ absorption threshold. This feature exhibits a crossover from the Raman to the normal Auger behavior at a photon energy close to the $\mathrm{Mn}\phantom{\rule{0.2em}{0ex}}2p$ photoemission ionization threshold. The resulting radiationless resonance Raman behavior gives rise to a signal equivalent to the $6\phantom{\rule{0.3em}{0ex}}\mathrm{eV}$ satellite in Ni, with energy at $3.3\phantom{\rule{0.3em}{0ex}}\mathrm{eV}$ below ${E}_{F}$. Moreover, the presence of many-electron effects is detected for the Mn spectral weight in the valence band, with a clear contribution of Mn-derived states at the Fermi edge.
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