the National Key Basic Research Project of China(Grant No.2014CB920903);the Guangxi NSF Key Fund,China(Grant No.2020GXNSFDA238004);the Fund from the Ministry of Science and Technology,China(Grant No.2017YFA0205004);the Strategic Priority Research Program of Chinese Academy of Sciences(Grant No.XDB36000000);the National Natural Science Foundation of China(Grant Nos.11874130,22073022,20173025,and 12074086);the DNL Cooperation Fund of the Chinese Academy of Sciences(Grant No.DNL202016);the CAS Instrument Development Project(Grant No.Y950291).
Emissions by magnetic polarons and spin-coupled d-d transitions in diluted magnetic semiconductors(DMSs)have become a popular research field due to their unusual optical behaviors.In this work,high-quality NiI_(2)(Ⅱ)...