Terahertz Nonlinear Hall Rectifiers Based on Spin‐Polarized Topological Electronic States in 1T‐CoTe2 (Adv. Mater. 10/2023)

Abstract

Nonlinear Hall Effect As the heart and with the tremendous applications of terahertz technology, photodetectors suffer from considerable drawbacks imposed by weak optical absorption, and inefficient charge-separation mechanisms. In article number 2209557, Antonio Politano, Lin Wang, and co-workers report the nonlinear Hall effect operating at terahertz frequencies within strong spin-polarized topological states in CoTe2 without invoking any semiconductor junctions or bias voltage, opening up fascinating route toward quantum wavefunction engineering.