This work was supported in part by the National Key Research and Development Plan of China under Grant 2016YFB0200405, in part by the National Natural Science Foundation of China under Grant 61672217, Grant 61370097, and Grant 61602164, in part by the Natural Science Foundation of Hunan Province, China, under Grant 2018JJ2063, Grant 2018JJ3076, and Grant 2018JJ3023, and in part by the outstanding youth project of education department of Hunan Province, China, under Grant 15B044.