Radius of the fermi sphere

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[SOLVED] radius of the fermi sphere

Homework Statement


On page 249 of ISSP, Kittel says that the radius of a free electron Fermi sphere is

[tex]k_F = \left(3 \pi^2 n \right)^{1/3}[/tex]

where n is the concentration of electrons.

I don't know why that is true.

EDIT: never mind; they derive that on page 138


Homework Equations





The Attempt at a Solution

 
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