Fermi surface for metals


by aaaa202
Tags: fermi, metals, surface
aaaa202
aaaa202 is offline
#1
Nov4-13, 08:31 AM
P: 992
Does this construction even make sense? By definition it is a surface of constant energy in k-space, so for the free electron it is a sphere. But for metals you have band structure so that a given k-vector can have several different energies associated with it.
Which of these are to be chosen?
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mfb
mfb is offline
#2
Nov4-13, 04:16 PM
Mentor
P: 10,840
For free electrons (or for an approximation), choose the model for free electrons, otherwise don't choose that?
Electrons in metals see a potential structure, if this can be neglected or not depends on your problem.


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