Phys.org  December 19, 2024 When the skyrmion lattice (SkL) acquires a drift velocity under conduction electron flow, an emergent electric field is also generated. The resulting emergent electrodynamics dictate the magnitude of the topological Hall effect (THE) by the relative motion of SkL and conduction electrons. Researchers in Japan reported the emergent electrodynamics induced by SkL motion in Gd2PdSi3, facilitated by its giant THE. They observed the dynamic transition of the SkL motion from the pinned to creep regime and finally to the flow regime, in which the THE was totally suppressed. According to the researchers the Galilean relativity required […]