Two-Dimensional Graphene Superlattice:Energy Spectrum and Current-Voltage Characteristics
The properties of two-dimensional graphene-based superlattice are studied. The creation of a two-dimensional periodic potential in the graphene layer is assumed to be alternating in a checkerboard pattern of rectangular areas of the substrate materials. For this system the energy spectrum and an exp...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Sumy State University
2017-04-01
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| Series: | Журнал нано- та електронної фізики |
| Subjects: | |
| Online Access: | http://jnep.sumdu.edu.ua/download/numbers/2017/2/articles/jnep_V9_02013.pdf |
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| Summary: | The properties of two-dimensional graphene-based superlattice are studied. The creation of a two-dimensional periodic potential in the graphene layer is assumed to be alternating in a checkerboard pattern of rectangular areas of the substrate materials. For this system the energy spectrum and an expression for the current in the graphene layer were obtained. The influence of a transverse constant electric field on the current is investigated. It is shown that the presence of the transverse field leads to the appearance of an additional peak in the current-voltage characteristics of the superlattice. |
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| ISSN: | 2077-6772 |