Ultrafast Critical Slowing of Spin Dynamics and Emergent Nonequilibrium Fano Interference in Fe3GeTe2

Anupama Chauhan, Sidhanta Sahu, Satyabrata Bera +5

Fe${}_3$GeTe${}_2$ is a prototypical metallic van der Waals ferromagnet with itinerant magnetism and a highly tunable Curie temperature, yet how electronic excitations couple to spin a…