initial-state Auger parameter

symbol: β
https://doi.org/10.1351/goldbook.09339
β=3EB+EK, where EB and EK are, respectively, the binding energy of a photoelectron peak and the Fermi level referenced (see Fermi level referencing) kinetic energy of an Auger electron peak, each involving the same initial core level of the same element.
Notes:
  1. The initial-state Auger parameter is useful for evaluating the change in the atomic core potential contribution to changes in binding energy between two environments, provided the Auger transition is between core levels that have similar binding energy shifts.
  2. This parameter has no relation to the asymmetry parameter, which is also given the symbol β.
See also: modified Auger parameter
Source:
PAC, 2020, 92, 1781. (Glossary of methods and terms used in surface chemical analysis (IUPAC Recommendations 2020)) on page 1827 [Terms] [Paper]
Citation: 'initial-state Auger parameter' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.09339 RIS BibTex EndNote
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