Events

Neel spin-orbit torque (NSOT) is a novel tool for spin manipulation in antiferromagnets with special symmetry (CuMnAs, Mn₂Au). As shown experimentally, application of current through such materials can lead to switching of the Neel vector. With clear opportunity of high-speed control of antiferromagnetic ordering, there were yet no investigations of NSOT time-dynamics in the terahertz range.This talk will present our recent results in measuring ultrafast spin dynamics in Mn₂Au following application of free-space terahertz pulses. The data indicates that the THz-induced NSOT acts on Mn₂Au spins and launches an 0.6 THz antiferromagnetic resonance mode. [more]