103 citations · 134 across the 6 of their papers we have counts for
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cond-mat.mtrl-sci2007★ 10 cited
Electron-Electron Interactions in Graphene
S. Das Sarma, Ben Yu-Kuang Hu, E. H. Hwang +1
We discuss the validity (or not) of the ring-diagram approximation (i.e. RPA) in the calculation of graphene self-energy in the weak-coupling () limit, showing that RPA…
cond-mat.mes-hall2007★ 18 cited
Many-body exchange-correlation effects in graphene
E. H. Hwang, Ben Yu-Kuang Hu, S. Das Sarma
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…
cond-mat.mes-hall2007★ 103 cited
Density dependent exchange contribution to in extrinsic graphene
E. H. Hwang, Ben Yu-Kuang Hu, S. Das Sarma
We calculate in extrinsic graphene as a function of carrier density at zero temperature by obtaining the electronic self-energy within the Hartree-Fock a…