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Energy Band Structure for Si and Ge from a Nonlocal Separable Potential Model

✍ Scribed by H. Fock

Publisher
John Wiley and Sons
Year
1973
Tongue
English
Weight
330 KB
Volume
56
Category
Article
ISSN
0370-1972

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✦ Synopsis

Abstract

If the local potential at each lattice site is replaced by a nonlocal projection operator, the eigenfunctions of the electrons can be eliminated from the SchrΓΆdinger equation. The method of Green's functions is utilized and calculation of the energy bands is done assuming projection potentials, which are formed by s‐ and p‐symmetrical Gauss functions. Quantitative agreement is obtained between calculated and observed transition energies, but no parallel bands over a larger range along the A‐axis can be produced. So the curvature of this energy band model which contains four parameters differs from other band calculations.

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