Symmetry-based approach to electron-phonon interactions in graphene

By J. Mañes. 2007

189 citations recorded by the source corpus.

We use the symmetries of monolayer graphene to write a set of constraints that must be satisfied by any electron-phonon interaction Hamiltonian. The explicit solution as a series expansion in the momenta gives the most general, model-independent couplings between electrons and long-wavelength acoustic and optical phonons. As an application, the possibility of describing elastic strains in terms of effective electromagnetic fields is considered in detail, with an emphasis on group-theory conditions and the role of time-reversal symmetry.

Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/12c455affcc06af21e2751e9a6657f391e726285

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In Atomic and Molecular Physics, and Optics

In Materials Chemistry

Citations in the corpus

Energy gaps and a zero-field quantum Hall effect in graphene by strain engineering (2009, background): “A two-dimensional strain field ( ) y x uij , leads to a gauge field [23,24]”
The electronic properties of graphene (2007, background): “Hen e, elasti strains that modify therelative orientation of the atoms also lead to an e e tivegauge eld, whi h a ts on ea h K point separately, as rst dis ussed in relation to arbon nanotubes (Mañes,2007; Suzuura and Ando, 2002b).”