Many-body interaction effects in doped and undoped graphene : Fermi liquid versus non-Fermi liquid

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Materials perspective on Casimir and van der Waals interactions (2015, unknown): “…method (Kotov et al., 2012; Sodemann and Fogler, 2012) results in a weak correction to the interaction energy as opposed to the two-loop level in the large-N limit approach (Das Sarma et al., 2007), where the characteristic distance dependence has a different power law (Dobson et al., 2014).”
The electronic properties of graphene (2007, background): “The stati diele tri onstant has a ontinuous derivative at 2kF, unlike in the ase of the 2D ele tron gas (Ando, 2006b; Sarma et al.,2007; Wuns h et al., 2006).”
Electronic transport in two-dimensional graphene (2010, background): “In particular, intrinsic graphene is a non-Fermi liquid in the presence of electron-electron interactions (Das Sarma et al., 2007b), whereas extrinsic graphene is a Fermi liquid.”
Colloquium: Graphene spectroscopy (2014, methodology): “Inferring vF from ν(EF ) using the formula vF ∝ kF /ν(EF ) of the noninteracting theory would cause overestimation of the Fermi velocity, e.g., by the factor ofZ−1 = 1+(1/2+1/π)α at α 1 (Das Sarma et al., 2007).”