A new skyrmion topological transition driven by higher-order exchange interactions in Janus MnSeTe
This study reveals a novel "ferric" topological transition in single-layer Janus MnSeTe driven by higher-order exchange interactions that specifically modify the Bloch point while leaving skyrmion stability largely governed by Dzyaloshinskii-Moriya interaction, establishing the material as a robust platform for 2D skyrmionics with exceptionally high energy barriers.