1. Hefei National Laboratory for Physical Sciences at Microscale and Department of Physics, University of Science and Technology of China
2. Hefei
3. P. R. China
4. Research and Services Division of Materials Data and Integrated System (MaDIS), National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba
5. Ibaraki 305-0047
6. Japan