intrinsic plasmon

https://doi.org/10.1351/goldbook.09342
Plasmon excited at the same time as the excitation of a core-level photoelectron or an Auger electron associated with the same locality as the excitation of the photoelectron or Auger electron.
Source:
PAC, 2020, 92, 1781. (Glossary of methods and terms used in surface chemical analysis (IUPAC Recommendations 2020)) on page 1827 [Terms] [Paper]