Abstract
Using synchrotron radiation and high-resolution electron spectroscopy, we have directly observed and identified specific photoelectrons from states in neon corresponding to simultaneous ionization and excitation. The natural lifetime broadening of the states and the relative intensities of different types of shakeup channels have been determined experimentally and compared to ab initio calculations. Moreover, the high-energy Auger spectrum resulting from the decay of and states as well as from participator Auger decay from states, has been measured and assigned in detail utilizing the characteristic differences in lifetime broadenings of these core hole states. Furthermore, post collision interaction broadening of Auger peaks is clearly observed only in the hypersatellite spectrum from states, due to the energy sharing between the two photoelectrons which favors the emission of one slow and one fast electron.
- Received 27 May 2016
DOI:https://doi.org/10.1103/PhysRevLett.117.133001
© 2016 American Physical Society