Abstract
AbstractIn the presence of transverse (ky‐direction) electric field, the low‐energy electronic properties of the AB‐stacked multilayered nanographite ribbons are studied through the tight‐binding model. The interlayer interactions significantly affect density of states (DOS), energy gap (Eg), band structure. DOS exhibits many special structures, including discontinuities, and divergent peaks. The effective electric field modifies the energy dispersions, alters the subband spacing, produces the new edge state, changes the band gap, and causes the metal‐semiconductor transitions. In the metallic zigzag ribbons, the effect of electric field on band structures is completely reflected in the features of DOS, e.g., the generation of special structures, the shift of peak position, the change of peak height, and the alternation of band gap. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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