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Journal of Physical Studies 11(2), 210–214 (2007)
DOI: https://doi.org/10.30970/jps.11.210 ENERGY SPECTRUM AND DENSITY OF STATES FOR A DISORDERED TIGHT-BINDING MODEL WITH DISPLACEMENTS DISORDERO. M. Voznyak
The Pre-Carpatian Vasyl Stefanyk University, Chair of Solid State Physics, |
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An equation for one-electron Green's function has been obtained and its solution has been found within the quadratic approximation for the atomic displacements from the sites of a regular crystal lattice. A calculation of the energy spectrum, its damping and density of states has been performed for a linear atomic chain. A relation of the characteristics of the band spectrum on the degree of disorder has been found.
PACS number(s): 71.23.-k, 73.21.-b