Fig. 1: Driving chiral antiferromagnetism by a short laser pulse.
From: Driving spin chirality by electron dynamics in laser-excited antiferromagnets

a Initial antiferromagnetic configuration in zx plane. Red and blue arrows represent initial up and down moments in the collinear antiferromagnetic ground state of the system. The yellow wavy line denotes the laser pulse polarised along the x-direction. b Following a complex intertwined dynamics of electrons and localised spins, a stable spin spiral state of the system is achieved (see Supplementary Movie 1 and Supplementary Note 2).