Funding for this research was provided by:
National Natural Science Foundation of China (11805065, 11504106)
the Key laboratory of low dimensional condensed matter physics of higher educational institution of Guizhou province ([2016]002)
Fundamental Research Funds for the Central Universities (2018072)
Article History
Received: 8 January 2020
Accepted: 15 July 2020
First Online: 25 July 2020