Terahertz Radiation Driven Nonlinear Transport Phenomena in Two-Dimensional Tellurene.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 39721964.
- Also identified by DOI 10.1021/acs.nanolett.4c05279 and PMC identifier 11719634.
- Licence recorded as CC BY.
- The licence permits redistribution, so the abstract is shown in full and the full text is available from the publisher.
Abstract
Nonlinear electron transport induced by polarized terahertz radiation is studied in two-dimensional tellurene at room temperature. A direct current, quadratic in the radiation's electric field, is observed. Contributions sensitive to radiation helicity and polarization orientation as well as polarization independent current are found. We show that these contributions can be modified by the magnitude of the external gate potential. We demonstrate that this terahertz-driven electric current arises from the Berry curvature dipole and the side-jump microscopic mechanisms.