Abstract:
Two modes of graphene–substrate interaction have been considered: a weak van der Waals bond and a strong covalent bond. The Lennard–Jones potential and Harrison bond-orbital method are used in the former and latter cases, respectively. Analytical expressions for the electron–phonon interaction constants, which contain only two parameters (binding energy EB for graphene and a substrate and distance d between them) have been obtained. The constants have been calculated for metallic, semiconductor, and dielectric substrates.
Citation:
S. Yu. Davydov, “Estimation of the electron–phonon coupling constants for graphene and metallic and nonmetallic substrates”, Fizika Tverdogo Tela, 60:4 (2018), 808–815; Phys. Solid State, 60:4 (2018), 812–820