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.

8 pages, 3 figures, 2 tables

References in corpus (14)

• The electronic properties of graphene
• Artificial Brownian motors: Controlling transport on the nanoscale
• Carrier transport in 2D graphene layers
• Etching and Narrowing of Graphene from the Edges
• Non-linear electromagnetic response of graphene
• Quantum Anomalous Hall State in Bilayer Graphene
• Electronic structure of triangular, hexagonal and round graphene flakes near the Fermi level
• Anomalous Hall effect in a two-dimensional electron gas
• Quantum ratchet effects induced by terahertz radiation in GaN-based two-dimensional structures
• Photogalvanic current in artificial asymmetric nanostructures
• Ratchet transport of interacting particles
• Transverse rectification of disorder-induced fluctuations in a driven system
• Transverse ratchet effect and superconducting vortices: Simulation and experiment
• Relativistic graphene ratchet on semidisk Galton board