Resonant low-energy electron scattering on short-range impurities in graphene
- 25 September 2008
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 78 (11), 115432
- https://doi.org/10.1103/physrevb.78.115432
Abstract
Resonant scattering of electrons with low energies (as compared to the bandwidth) on a single neutral short-range impurity in graphene is analyzed theoretically, taking into account the valley degeneracy. Resonances dramatically increase the scattering cross section and introduce a strong energy dependence. Analysis of the tight-binding model shows that resonant scattering is typical for generic impurities as long as they are sufficiently strong (the potential is of the order of the electron bandwidth or higher).Keywords
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