1. School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, China
2. Department of Physics and Astronomy “Augusto Righi”, Alma Mater Studiorum, Università di Bologna, Bologna 40127, Italy
3. Faculty of Physics and Center for Computational Materials Science, University of Vienna, Kolingasse 14-16, Vienna 1090, Austria
4. Smart Ferroic Materials Center, Physics Department and Institute for Nanoscience and Engineering, University of Arkansas, Fayetteville, Arkansas 72701, United States
5. Key Laboratory of Advanced Materials and Devices for Post-Moore Chips, Ministry of Education, University of Science and Technology Beijing, Beijing 100083, China