Many-body effects on out-of-plane phonons in graphene

Raman spectra of out-of-plane phonons in bilayer graphene

Kentaro Sato,1 Jin Sung Park,2 Riichiro Saito,1 Chunxiao Cong,3 Ting Yu,3,4 Chun Hung Lui,5 Tony F. Heinz,5 Gene Dresselhaus,6 and Mildred S. Dresselhaus7,8 1Department of Physics, Tohoku University, Sendai 980-8578, Japan 2Faculty of Engineering, Shinshu University, Nagano 380-8553, Japan 3Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technologi...

Many-body exchange-correlation effects in graphene

We calculate, within the leading-order dynamical-screening approximation, the electron self-energy and spectral function at zero temperature for extrinsic (or gated/doped) graphene. We also calculate hot carrier inelastic scattering due to electron–electron interactions in graphene. We obtain the inelastic quasiparticle lifetimes and associated mean free paths from the calculated self-energy. T...

Engineering of the thermodynamic properties of bilayer graphene by atomic plane rotations: the role of the out-of-plane phonons.

We investigated theoretically the specific heat of graphene, bilayer graphene and twisted bilayer graphene taking into account the exact phonon dispersion and density of states for each polarization branch. It is shown that contrary to a conventional belief the dispersion of the out-of-plane acoustic phonons - referred to as ZA phonons - deviates strongly from a parabolic law starting from the ...

Many-body effects on graphene conductivity: Quantum Monte Carlo calculations

Many-body effects in Auger electron emission from Graphene