Photocurrent and photoconductance of an helical edge state
arXiv:1904.07815 · doi:10.1103/PhysRevB.100.245412
Abstract
We consider the helical edge state of a Quantum Spin Hall insulator, connected between two leads, and irradiated by a monochromatic and circularly polarized electromagnetic wave. The photocurrent generated within the helical edge state is studied as function of the characteristics of the electromagnetic radiation and electronic doping of the edge state. We focus on the effect of the leads on the photocurrent. We also investigate the photoconductance of the helical edge state in presence of a voltage bias between the leads.
arXiv comment9 pages, 7 figures
References in corpus (36)
- Topological Insulators
- Topological insulators and superconductors
- Quantum Spin Hall Effect in Graphene
- Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
- Topological Order and the Quantum Spin Hall Effect
- Quantum Spin Hall Insulator State in HgTe Quantum Wells
- Classification of topological insulators and superconductors in three spatial dimensions
- Photonic Floquet Topological Insulators
- Topological insulators and superconductors: ten-fold way and dimensional hierarchy
- Quantum Spin Hall Effect and Topological Field Effect Transistor in Two-Dimensional Transition Metal Dichalcogenides
- Floquet Topological Insulator in Semiconductor Quantum Wells
- Photovoltaic Hall effect in graphene
- Observation of Floquet-Bloch states on the surface of a topological insulator
- Topological characterization of periodically-driven quantum systems
- Transport properties of non-equilibrium systems under the application of light: Photo-induced quantum Hall insulators without Landau levels
- Light-induced anomalous Hall effect in graphene
- Realization of Quantum Spin Hall State in Monolayer 1T'-WTe2
- Observation of the Quantum Spin Hall Effect up to 100 Kelvin in a Monolayer Crystal
- Quantum Spin Hall Effect in Inverted Type II Semiconductors
- The Helical Liquid and the Edge of Quantum Spin Hall Systems
- Floquet topological insulators
- Floquet scattering theory of quantum pumps
- Floquet-Bloch theory and topology in periodically driven lattices
- Observation of Quantum Spin Hall States in InAs/GaSb Bilayers under Broken Time-Reversal Symmetry
- Floquet Spectrum and Transport Through an Irradiated Graphene Ribbon
- Irradiated graphene as a tunable Floquet topological insulator
- Floquet chiral edge states in graphene
- Multiterminal Conductance of a Floquet Topological Insulator
- Optically engineering the topological properties of a spin Hall insulator
- Topological index for periodically driven time-reversal invariant 2D systems
- Engineering Quantum Anomalous Hall Plateaus and Anti-Chiral States with AC Fields
- The chiral anomaly in real space
- Photoexcitation of electron wave packets in quantum spin Hall edge states: effects of chiral anomaly from a localised electric pulse
- Probing (topological) Floquet states through DC transport
- Ballistic transport through irradiated graphene
- Floquet topological phases coupled to environments and the induced photocurrent