Resonant satellite photoemission of atomic Mn

The photoelectron spectra and the relative partial photoionisation cross sections of atomic Mn have been determined for photon energies between 45 and 65 eV. Besides the main 3d 5 4s 2 6 S to 3d 4 4s 2 ( 5 D) epsilon l, 3d 5 4s( 5,7 S) epsilon l photoemission lines there are prominent 3d 4 4snl epsilon l satellite photoemission lines which are strongly enhanced in the range of the giant 3p to 3d resonance and the 3p 6 3d 5 4s 2 to 3p 5 4s 2 nl Rydberg transitions. Near the 3p to 3d resonance the partial cross sections of these two-electron satellites behave similarly to that of the 3s 5 4s 2 to 3d 4 4s 2 epsilon l main line The interference between the 3p 6 3d 5 4s 2 6 S to 3p 5 3d 6 4s 2 6 P excitation and the continuum channels manifests itself in the asymmetric profile of the partial cross sections. In contrast to this, the 3d 5 4s 2 to 3d 5 4s 5 L epsilon l partial cross sections can be approximated by the superposition of Lorentzians centred at the 3p 6 3d 5 4s 26 S to 3p 5 3d 6 4s 26 D, 6 P, 4 L excitation energies. The 3d 5 5s epsilon l photoemission only undergoes a single symmetric resonance. All these lines, including the main lines, do not show an enhancement close to the 3p 5 3d 5 4s 2 7 P ionisation limits. When tuning the photon energy across these ionisation limits post-collision interactions give rise to further satellite lines, and to asymmetric M 2,3 M 4,5 N 1 Auger lines which, in comparison with the normal Auger lines, are shifted toward higher energies.