- #1
nista
- 11
- 0
In many textbooks and sites of solid state physics energy levels for the free electron approximation in band calculations are displayed. The result is a collection of many parabolas, each of these parabolas being centered on a site of the reciprocal lattice.
This is not anyway the picture that should emerge from the free electron solution where we should find a single parabola with vertex at k=0.
Can anyone help me explain this discrepancy?
Thanks a lot
This is not anyway the picture that should emerge from the free electron solution where we should find a single parabola with vertex at k=0.
Can anyone help me explain this discrepancy?
Thanks a lot
Last edited: