Abstract
It is shown that the Fermi velocity of electrons is a natural characteristic of gapless graphene and cumulene modification of carbyne weakly coupled with the substrate. At the same time, in the presence of gap (graphene with a gap and polyyne modification of carbyne), the corresponding characteristic is the effective electron mass. The corresponding analytical estimations have been performed.
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Davydov, S.Y. Estimations of the Fermi Velocity and Effective Mass in Epitaxial Graphene and Carbyne. Tech. Phys. Lett. 45, 650–652 (2019). https://doi.org/10.1134/S1063785019070058
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DOI: https://doi.org/10.1134/S1063785019070058