O.F. Schirmer, K.W. Blazey, et al.
Physical Review B
Paper
A finite number of sub-bands?
Abstract
It is shown that the condition for the number of electron sub-band levels from quantization in an accumulation or inversion layer to be finite is that ∫∞V1/2 dz converges, where V(z) is the potential as a function of depth z. It appears that this condition should normally be satisfied.
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