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Auger effect

[oh-zhey]
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noun Physics.
  1. a nonradiative process in which an atom in an excited state undergoes a transition to a lower state by the emission of a bound electron (Auger electron) rather than by the emission of an x-ray.

Origin of Auger effect

1930–35; named after Pierre V. Auger (born 1899), French physicist
Also called autoionization.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for auger-electron

Auger effect

noun
  1. the spontaneous emission of an electron instead of a photon by an excited ion as a result of a vacancy being filled in an inner electron shell

Word Origin

C20: named after Pierre Auger (1899–1993), French physicist
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012