Funding for this research was provided by:
National Natural Science Foundation of China (61671389)
Fundamental and Frontier Research Project of Chongqing (cstc2014jcyjA40020)
China Postdoctoral Science Foundation Funded Project (2016M590853)
Fundamental Research Funds for the Central Universities (XDJK2014B001, XDJK2016E029)
National Natural Science Foundation of China (61672436, 61372139)
National Natural Science Foundation of China (61571372)