Asgari, R.Vazifeh, M. M.Ramezanali, M. R.Davoudi, E.Tanatar, Bilal2016-02-082016-02-0820081098-0121http://hdl.handle.net/11693/23161We calculate the ground-state energy of Dirac electrons in graphene in the presence of disorder. We take randomly distributed charged impurities at a fixed distance from the graphene sheet and surface fluctuations (ripples) as the main scattering mechanisms. A mode-coupling approach to the scattering rate and random-phase approximation for the ground-state energy incorporating the many-body interactions and the disorder effects yields good agreement with the experimental inverse compressibility.EnglishArticle10.1103/PhysRevB.77.125432