“…Since 2017, Janus TMD materials such as Mo(S, Se) 2 and W(S, Se) 2 monolayers have been synthesized, 24,25 noting that the Janus features provide a greater degree of freedom to modulate the magnetic state. 26 Inspired by theoretical study on Cr-based dichalcogenide halides and Ti-based magnetic materials, [27][28][29][30] it is possible to change the valence state of transition metal ions to induce magnetic order in nonmagnetic TMDs through haloid Janus substitution, a promising platform to design many more ferrovalley materials.…”