Plasmon or Shake-up – Which?
Plasmon or Shake-up – Which is it?
Plasmons are due to phonon-electron interactions.
Plasmons occur in conductive materials, not insulators.
Plasmons occur within the near bulk and top surface.
Shake-ups are due to an valence electron promoted to higher state followed a photoelectron emission while the electron is in the higher state.
Shake-up can be 20-30 eV higher in BE.