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arXiv · 1202.5786

Hopping-resolved electron-phonon coupling in bilayer graphene

E. Cappelluti·G. Profeta
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Abstract

In this paper we investigate the electron-phonon coupling in bilayer graphene, as a paradigmatic case for multilayer graphenes where interlayer hoppings are relevant. Using a frozen-phonon approach within the context of Density Functional Theory (DFT) and using different optical phonon displacements we are able to evaluate quantitatively the electron-phonon coupling $\alpha_i$ associated with each hopping term $\gamma_i$. This analysis also reveals a simple scaling law between the hopping terms $\gamma_i$ and the electron-phonon coupling $\alpha_i$ which goes beyond the specific DFT technique employed.

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E. Cappelluti, G. Profeta. 2012-02-26. Hopping-resolved electron-phonon coupling in bilayer graphene. https://doi.org/10.1103/physrevb.85.205436

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