Effect of edge vacancies on localized states in a semi-infinite zigzag graphene sheet
| Autor: | Vladimir A. Osipov, A. A. Glebov, V. L. Katkov |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Condensed Matter - Materials Science
Critical distance Materials science Condensed Matter - Mesoscale and Nanoscale Physics Physics and Astronomy (miscellaneous) Semi-infinite Condensed matter physics Solid-state physics Graphene Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences law.invention Zigzag law Mesoscale and Nanoscale Physics (cond-mat.mes-hall) 0103 physical sciences Edge states Function method 010306 general physics 0210 nano-technology Mutual influence |
| Zdroj: | JETP Letters. 104:842-846 |
| ISSN: | 1090-6487 0021-3640 |
| DOI: | 10.1134/s0021364016240024 |
| Popis: | The effect of vacancies on the robustness of zero-energy edge electronic states in zigzag-type graphene layer is studied at different concentrations and distributions of defects. All calculations are performed by using the Green's function method and the tight-binding approximation. It is found that the arrangement of defects plays a crucial role in the destruction of the edge states. We have specified a critical distance between edge vacancies when their mutual influence becomes significant and affects markedly the density of electronic states at graphene edge. 5 pages, 8 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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