Radiative Auger effect

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.^[1] The effect was first observed by Felix Bloch and Perley Ason Ross,^[2] with the initial theoretical explanation by Bloch.^[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.

See also

• Auger effect
• Radiative transition