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Quantum transport in honeycomb lattice ribbons with zigzag edges
| Content Provider | Semantic Scholar |
|---|---|
| Author | Maiti, Santanu K. |
| Copyright Year | 2009 |
| Abstract | We explore electron transport properties in honeycomb lattice ribbons with zigzag edges coupled to two semi-infinite one-dimensional metallic electrodes. The calculations are based on the tight-binding model and the Green’s function method, which numerically compute the conductance-energy and current-voltage characteristics as functions of the lengths and widths of the ribbons. Our numerical results predict that for such a ribbon an energy gap always appears in the conductance spectrum across the energy E = 0. With the increase of the size of the ribbon, the gap gradually decreases but it never vanishes. This clearly manifests that a honeycomb lattice ribbon with zigzag edges always exhibits the semiconducting behavior, and it becomes much more clearly visible from our presented current-voltage characteristics. PACS No.: 73.63.-b; 73.63.Rt. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://arxiv.org/pdf/0906.4405v1.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Conductance (graph) Electron Transport Exhibits as Topic Numerical analysis Physics and Astronomy Classification Scheme Quantum Semiconductor industry Tight binding electrode voltage |
| Content Type | Text |
| Resource Type | Article |
