Ratchet effect in graphene with trigonal clusters
arXiv:1406.3230 · doi:10.1140/epjb/e2014-50434-4
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.
8 pages, 3 figures, 2 tables
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- Giant ratchet magneto-photocurrent in graphene lateral superlattices
- Ratchet transport of a two-dimensional electron gas at cyclotron resonance
- Terahertz spin ratchet effect in magnetic metamaterials
- Skew scattering and ratchet effect in photonic graphene