Abstract
Narrow-gap semiconductors, used in quantum network engineering, are characterized by small effective electron masses on the Fermi level and hence by high electron mobility in the lattice. We construct an explicitly solvable model that clarifies one possible mechanism for small effective masses to appear. Another mathematical model constructed here describes a possible mechanism for using a traveling wave to control an alternating quantum current in a one-dimensional lattice.
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Pavlov, B.S., Pokrovski, A.A. & Strepetov, A.V. Quasi-Relativism, the Narrow-Gap Property, and Forced Electron Dynamics in Solids. Theoretical and Mathematical Physics 131, 506–515 (2002). https://doi.org/10.1023/A:1015153719438
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DOI: https://doi.org/10.1023/A:1015153719438