1. School of Physical Science and Technology ShanghaiTech University Shanghai 201210 China
2. Center for Transformative Science ShanghaiTech University Shanghai 201210 China
3. National Key Laboratory of Materials for Integrated Circuits Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Shanghai 200050 China
4. Shanghai Synchrotron Radiation Facility Shanghai Advanced Research Institute Chinese Academy of Sciences Shanghai 201204 China