Funding for this research was provided by:
National Natural Science Foundation of China (61372139, 61101233, 60972155, 51405396)
Fundamental Research Funds for the Central Universities (XDJK2016C027, XDJK2017B051)
Fundamental Science and Frontier Technology Foundation of Chongqing (cstc2016jcyjA0573, cstc2016jcyjA0422)
Article History
First Online: 25 June 2018