Seminars & Lectures
| * TITLE | Screening in Chiral Multilayer Graphene | ||||||
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| * DATE / TIME | 2011-12-16, 5:00 p.m. | ||||||
| * PLACE | ECC B244, Ewha Womans University | ||||||
| * ABSTRACT | |||||||
| We calculate the static polarization function of multilayer graphene and study the effects of stacking arrangement, carrier density and onsite energy difference. At low densities, the energy spectrum of multilayer graphene is described by a set of chiral two-dimensional electron systems and the associated chiral nature determines the screening properties of multilayer graphene showing very different behavior depending on whether chirality indices are even or odd. As the density increases, the energy spectrum follows that of monolayer graphene thus the polarization function approaches that of monolayer graphene. |
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