Peculiar Width Dependence of the Electronic Property of Carbon Nanoribbons

Details Peculiar Width Dependence of the Electronic Property of Carbon Nanoribbons Peculiar Width Dependence of the Electronic Property of Carbon Nanoribbons

2006-02-21

arxiv.org/abs/cond-mat/0602480v1

PHYSICAL REVIEW B 73, 045432 (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages, 13 figures

Scientific paper

10.1103/PhysRevB.73.045432

Nanoribbons (nanographite ribbons) are carbon systems analogous to carbon nanotubes. We characterize a wide class of nanoribbons by a set of two integers $$, and then define the width $w$ in terms of $p$ and $q$. Electronic properties are explored for this class of nanoribbons. Zigzag (armchair) nanoribbons have similar electronic properties to armchair (zigzag) nanotubes. The band gap structure of nanoribbons exhibits a valley structure with stream-like sequences of metallic or almost metallic nanoribbons. These sequences correspond to equi-width curves indexed by $w$. We reveal a peculiar dependence of the electronic property of nanoribbons on the width $w$.

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