Fermi impulse

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The Fermi momentum is the momentum that corresponds to the Fermi energy :

with .

In the case of K , the maximum momentum of the most energetic electron is in a solid. In the momentum space one can define the Fermi sphere , which has the radius and thus contains all existing electron pulses.


  • Neil W. Ashcroft, N. David Mermin: Solid State Physics . 2nd Edition. Oldenbourg, Munich 2005, ISBN 3-486-57720-4 .