“…Previous first principles calculations indicate that group-III monochalcogenides (e.g., GaS, GaSe and InSe), 11,14,15 [12,15,16] group-IV monoxides (SnO and PbO), 12,16 InP 3 , 17 SnX 2 (X=S and Se), 18 MoN 2 , 19 blue phosphorene and gray arsenene, 20 etc. show ferromagnetic characteristics with hole doping.…”