In optics and spectroscopy, the radiative Auger effect is a decay channel of an inner-shell atomic vacancy state, in which an X-ray photon is emitted accompanying simultaneous promotion of an electron into either a bound or a continuum state.
Thus the transition energy is shared between the photon and the electron.
[3] Later the effect has also been observed on defects in the solid-state,[4] semiconductor quantum emitters,[5][6] as well as two-dimensional electron gases.
[7][8] In the latter case, the effect is typically referred to as shake-up.
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