1. Physical Science and Engineering Division (PSE) King Abdullah University of Science and Technology (KAUST) Thuwal 23955‐6900 Saudi Arabia
2. Key Laboratory for Magnetism and Magnetic Materials of Ministry of Education School of Physical Science and Technology and Electron Microscopy Centre of Lanzhou University Lanzhou University Lanzhou Gansu Province 730000 China
3. Songshan Lake Materials Laboratory Dongguan Guangdong 523808 China
4. Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute for Advanced Materials South China Academy of Advanced Optoelectronics South China Normal University Guangzhou Guangdong Province 510006 China
5. National Center for International Research on Green Optoelectronics South China Normal University Guangzhou Guangdong Province 510006 China
6. Tianjin Key Laboratory of Low Dimensional Materials Physics and Processing Technology Institute of Advanced Materials Physics Faculty of Science Tianjin University Tianjin Tianjin Municipality 300354 China
7. Aix‐Marseille Université CNRS CINaM Marseille 13288 France
8. Department of Physics University of California Berkeley CA 94720 USA