The Fermi level in a metal, where the energy required to remove an electron from the surface of the metal is used to define the zero of energy. It can be described as the energy difference between the Fermi level and the vacuum level.
The Fermi level in a metal, where the energy required to remove an electron from the surface of the metal is used to define the zero of energy. It can be described as the energy difference between the Fermi level and the vacuum level.