▎ 摘　　要

A Monte Carlo (MC) method taking account of electron-electron scattering is used to elucidate the site-potential asymmetry impact on electron transportation in graphene. Full-band and approximate treatments are used for electron-phonon scattering and electron-electron scattering, respectively. MC simulations reveal that the site-potential asymmetry degrades graphene's electron transport properties by about 20%. (C) 2011 The Japan Society of Applied Physics