1. Institute of Marine Science and TechnologyShandong University Qingdao 266200 China
2. School of MicroelectronicsShandong University Jinan 250100 China
3. Beijing National Laboratory for Condensed Matter PhysicsInstitute of PhysicsChinese Academy of Sciences Beijing 100190 China
4. Institute for Advanced Interdisciplinary Research (iAIR)University of Jinan Jinan 250022 China
5. Department of Physics and Centre for Advanced Two‐dimensional MaterialsNational University of Singapore Singapore 117542 Singapore
6. State Key Laboratory of Crystal MaterialsShandong University Jinan Shandong 250100 China