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Model Calculations for Electrons in Amorphous Structures with Short-Range Order

โœ Scribed by K. Maschke; P. Thomas

Publisher
John Wiley and Sons
Year
1970
Tongue
English
Weight
420 KB
Volume
39
Category
Article
ISSN
0370-1972

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โœฆ Synopsis

Abstract

The distribution of poles of the averaged oneโ€electron Green's function in the complex kโ€space has been investigated for a simple model consisting of point scatterers which form a slightly distorted primitive cubic lattice without longโ€range order. For energies within the energy band of the corresponding crystal the poles of the amorphous case are found to represent โ€œquasiโ€crystal electronsโ€ which, for small disorder, may be classified in a sense by a kโ€vector, while for energies near the crystal band edges (inside or outside the crystal band) the states are no longer comparable with crystalline states.

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