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We address the intrinsic polarisation and screening of external electricfield in a broad range of ordered and twisted configurations of multilayergraphene, using an ab initio approach combining density functional theory andthe Wannier function formalism. We show that multilayer graphene isintrinsically polarized due to the crystal field effect, an effect that isoften neglected in tight-binding models of twisted bilayer graphene and similarsystems. This intrinsic polarization of the order of up to few tens of meVs hasdifferent out-of-plane alignments in ordered and twisted graphene multilayers,while the in-plane potential modulation is found to be much stronger in twistedsystems. We further investigate the dielectric permittivity $\varepsilon$ insame multilayer graphene configurations at different electric field strengths.Our findings establish a deep insight into intrinsic and extrinsic polarizationin graphene multilayers and provide parameters necessary for building accuratemodels of these systems.

Crystal Field Effect and Electric Field Screening in Multilayer Graphene with and without Twist