Question

Describe the mechanism of the production of an LMM Auger electron.

Short answer

When an excited atoms release the extra energy to an electron that is then emitted as an Auger electron.

Step-by-step solution

Concept:

When energy level of the electrons falls from the high energy level in an inner vacant shell the emitted electrons are called auger electrons. This process takes place by the bombardment of atom with a electron having high energy.

Description:

When an excited atoms release the extra energy to an electron that is then emitted as an Auger electron.
The process of the production of an LMM Auger electron consists of the formation of an ion which is excited electronically.
The ion is excited after the removal of an electron from the outer shell. Due to the removal, there is vacancy and the vacant place is filled by the electron from the high energy level.
During the transferring of electron from the higher energy level to the lower energy level, the energy is released to the other electron of the same shell.
This released energy is used to overpower the binding energy. Thus, the other electron is ejected, called as an LMM auger electron.