Central South University, Central South University, Central South University, affiliation not provided to SSRN, Central South University, Central South University, affiliation not provided to SSRN, Chinese Academy of Sciences (CAS), Shanghai Institute of Applied Physics, Shanghai Synchrotron Radiation Facility, Chinese Academy of Sciences (CAS) - Suzhou Institute of Nano-Tech and Nano-Bionics and Central South University - Hunan Key Laboratory for Super-microstructure and Ultrafast Process