Radiative Auger effect is a decay channel of an inner-shell atomic vacancy state, in which an
x-ray
An X-ray, or, much less commonly, X-radiation, is a penetrating form of high-energy electromagnetic radiation. Most X-rays have a wavelength ranging from 10 picometers to 10 nanometers, corresponding to frequencies in the range 30&nb ...
photon
A photon () is an elementary particle that is a quantum of the electromagnetic field, including electromagnetic radiation such as light and radio waves, and the force carrier for the electromagnetic force. Photons are massless, so they always ...
is emitted accompanying simultaneous promotion of an
electron
The electron ( or ) is a subatomic particle with a negative one elementary electric charge. Electrons belong to the first generation of the lepton particle family,
and are generally thought to be elementary particles because they have no kn ...
into either a bound or a continuum state. Thus the transition energy is shared between the photon and the electron.
The effect was first observed by
F. Bloch and
P. A. Ross, with initial theoretical explanation by F. Bloch.
Later the effect has also been observed on defects in the solid-state,
semiconductor quantum emitters,
as well as two-dimensional electron gases.
In the latter case, the effect is typically referred to as shake-up.
See also
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Auger effect
The Auger effect or Auger−Meitner effect is a physical phenomenon in which the filling of an inner-shell vacancy of an atom is accompanied by the emission of an electron from the same atom. When a core electron is removed, leaving a vacancy, an ...
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Radiative transition
References
Atomic physics
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