A nonrelativistic and nonmagnetic mechanism for generating terahertz waves

https://phys.org/news/2023-09-nonrelativistic-nonmagnetic-mechanism-generating-terahertz.html

"precise ultrafast control light-induced charge currents at nanoscale interfaces... antiferromagnetic RuO2 and nonmagnetic IrO2 single-crystal films deflect diffusive charge currents injected from optically excited metal thin film, redirecting from longitudinal to transverse... high-density charge currents across metallic interfaces... IR 3X stronger... high anisotropic electrical conductivity eliminating need for spin-polarization... greater flexibility and scalability... THz spectroscopy, solar cells, artificial photosynthesis, optoelectronics"