Chiral Polaron Formation in Graphene
arXiv:1205.0726 · doi:10.1088/0953-8984/25/2/025302
Abstract
A theoretical investigation of the possible existence of the chiral polaron formation in graphene is reported. We present an analytical method to calculate the ground-state of the electron-phonon system within the framework of the Lee-Low and Pines theory. On the basis of our model, the influence of electron-optical phonon interaction onto the graphene electronic spectrum is examined. In this paper, we only considered doubly degenerate optical phonon modes of E_2g symmetry near the zone center Gamma. We show analytically that the energy dispersions of both valance and conduction bands of the pristine graphene differ significantly than those obtained through the standard electron self energy calculations due to the electron-phonon interactions. Furthermore, we prove that the degenerate band structure of the graphene promote the chiral polaron formation.
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- Polaronic effects in monolayer black phosphorus on polar substrates
- Zone-Boundary Phonon Induced Mini Band Gap Formation in Graphene
- Chiral polaron formation on the edge of topological quantum matter
- Substrate-limited helical edge states
- Attractive polaron in a Dirac system within the ladder approximation
- Attractive polaron formed in doped nonchiral/chiral parabolic system within ladder approximation
- Intrinsic Spin-Orbit Interaction in Graphene