Research into electromagnons may enable ultrafast control of magnetism with light

https://phys.org/news/2023-11-secret-life-electromagnon-ultrafast-magnetism.html

"When terahertz pulse strikes crystal, the electric field pushes the atoms atoms to wiggle (phonons), creating an effective magnetic field, that causes spins to wobble (magnons) fractionally later... time-resolved X-ray diffraction used to quantify, at very low temperatures, how much energy phonons and magnons acquire respectively... interactions between lattice and spins underpin many physical effects that give rise to unusual and potentially very useful material properties: for example, high-temperature superconductivity"