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Teoreticheskaya i Matematicheskaya Fizika, 1996, Volume 106, Number 2, Pages 306–314
DOI: https://doi.org/10.4213/tmf1116 (Mi tmf1116) 		 
The perturbation of the surface density of electronic states by point defect – the connection with the topology of the isoenergetic curve

S. V. Frolov

V. A. Fock Institute of Physics, Saint-Petersburg State University
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DOI: https://doi.org/10.4213/tmf1116
Abstract: The discrete Schrodinger equation on two-dimensional Bravais lattice perturbed by a point potential is considered. The asymptotic behavior of the perturbation of the surface density of states is analyzed. It is established that the behavior of this perturbation depends mainly on the topological properties of the isoenergetic curve on the Brillouin zone.
Received: 06.06.1995
English version:
Theoretical and Mathematical Physics, 1996, Volume 106, Issue 2, Pages 254–260
DOI: https://doi.org/10.1007/BF02071080
Bibliographic databases:
Language: Russian
Citation: S. V. Frolov, “The perturbation of the surface density of electronic states by point defect – the connection with the topology of the isoenergetic curve”, TMF, 106:2 (1996), 306–314; Theoret. and Math. Phys., 106:2 (1996), 254–260
Citation in format AMSBIB
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\pages 306--314
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\transl
\jour Theoret. and Math. Phys.
\yr 1996
\vol 106
\issue 2
\pages 254--260
\crossref{https://doi.org/10.1007/BF02071080}
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