1. Chair of Computational Materials Design (CMD), Faculty of Materials Science, Kim Il Sung University, Ryongnam-Dong, Taesong District, Pyongyang P.O. Box 76, Democratic People’s Republic of Korea
2. Shanghai International Studies University, Shanghai 201613, China
3. Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
4. Shanghai University, Shanghai 200444, China