Giant ratchet magneto-photocurrent in graphene lateral superlattices

2020/04/09 by S. Hubmann, V. V. Bel'kov, L. E. Golub +5 · 18 citations
Physics and Astronomy · #Graphene #Photocurrent #Quantum #Quantum and electron transport phenomena #Quantum dot #Ratchet #Ratchet effect #Superlattice #Topological Materials and Phenomena #cond-mat.mes-hall #physics.app-ph #stochastic dynamics and bifurcation

paper · pdf · doi:10.1103/physrevresearch.2.033186

published in Physical Review Research 2(3) (American Physical Society)

arxiv created 2020/04/09 · openalex created_date 2020/04/17 · openalex publication_date 2020/08/03 · arxiv updated 2020/08/12 · openalex updated_date 2026/08/05

Abstract

The authors report on the observation of the terahertz-radiation induced magnetic quantum ratchet effect in graphene with a lateral dual-grating top gate superlattice. The corresponding photocurrent shows sign-alternating magneto-oscillations corresponding to the Shubnikov-de Haas effect.

Citations

• High performance bilayer-graphene terahertz detectors
• Tunable transport with broken space–time symmetries
• Quantum ratchet effects induced by terahertz radiation in GaN-based two-dimensional structures

Cited by

• Beatings of ratchet current magneto-oscillations in GaN-based grating gate structures: Manifestation of spin-orbit band splitting