Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2011-10-24
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
19 pages,6 figures
Scientific paper
In this work, the tridiagonal method is used to distinguish between edges modes and area modes to study the edge sites properties effect on edge localized states of semi-infinite zigzag 2D honeycomb graphene sheet. The results show a realistic behavior for the dependance of edge localized states of zigzag graphene on the edge sites properties which explaining the experimental results of measured local density of states at the edge of graphene, while at the same time removing the inconsistence between the semiconductor behavior found in the experimental data for fabricated GNRs and the expected theoretical semi-metallic behavior calculated without considering the edge properties effect on the edge localized states.
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