Auger effect, also known as Auger effect, is a physical phenomenon that an electron emitted by an atom causes another electron or electrons (Auger electrons) to emit rather than radiate X-rays (which cannot be explained by photoelectric effect), making atoms and molecules become higher-order ions. This is a transition process, in which the energy of one electron decreases and the energy of the other electron increases.
Extension 1: Auger electron spectrum is a spectral line obtained by using X-rays or high-energy electron beams to generate Auger electrons and measuring the relationship between their intensity and energy. The results can be used to identify atoms and their surroundings.
Extension 2: Auger recombination is a similar Auger phenomenon in semiconductors: an electron and a hole (electron-hole pair) can recombine and release energy by emitting electrons in the energy band, thus increasing the energy of the energy band. Its inverse effect is called collision ionization.