Noun
Auger effect
The secondary emission of an electron following the ionisation of a core electron of an atom.
The Auger effect was discovered independently by both Lise Meitner and Pierre Auger in the 1920s. Source: Internet
Since the Auger effect is not the only mechanism available for atomic relaxation, there is a competition between radiative and non-radiative decay processes to be the primary de-excitation pathway. Source: Internet
However, if the lower state is in an inner shell, a phenomenon known as the Auger effect may take place where the energy is transferred to another bound electrons causing it to go into the continuum. Source: Internet
The Auger effect allows one to multiply ionize an atom with a single photon. Source: Internet