Ratchet effect in graphene with trigonal clusters
Abstract
In this study, we explore the ratchet effect in graphene with artificial, triangular scatterers from a theoretical standpoint. It is demonstrated that the skew scattering of carriers by such coherently oriented defects results in the ratchet effect in graphene, i.e., in a direct current under the action of an oscillating electric field. Scattering on various types of defects exhibiting threefold symmetry is considered in this paper: scattering on a cluster in the shape of a solid triangle in the classical and quantum mechanical limits, and scattering on three-point defects placed at the corners of a triangle. The DC current is calculated for a classical range of oscillating field frequencies.
- Publication:
-
European Physical Journal B
- Pub Date:
- September 2014
- DOI:
- 10.1140/epjb/e2014-50434-4
- arXiv:
- arXiv:1406.3230
- Bibcode:
- 2014EPJB...87..216K
- Keywords:
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- Solid State and Materials;
- Condensed Matter - Mesoscale and Nanoscale Physics
- E-Print:
- 8 pages, 3 figures, 2 tables