J.X.W.acknowledges financial support from the National Natural Science Foundation of China(No.92064005);Beijing National Laboratory for Molecular Sciences(No.BNLMS201914);thanks S.S.D.in Tianjin Key Laboratory of Molecular Optoelectronic Sciences for her instrumental assistance on PPMS(Dynacool-9T);H.T.Y.acknowledges the support from the National Natural Science Foundation of China(Nos.91750101,21733001,52072168,and 51861145201);the National Key Basic Research Program of China(No.2018YFA0306200);the Fundamental Research Funds for the Central Universities(Nos.021314380078,021314380104,and 021314380147);Jiangsu Key Laboratory of Artificial Functional Materials。
Identifying air-stable two-dimensional(2D)ferromagnetism with high Curie temperature(T_(c))is highly desirable for its potential applications in next-generation spintronics.However,most of the work reported so far mai...