1. Institute
for Superconducting and Electronic Materials, University of Wollongong, Wollongong, New South Wales 2519, Australia
2. School
of Material Science and Engineering, Hefei University of Technology, Hefei, Anhui 230000, P.R. China
3. Department
of Materials Science and Engineering, School of Chemistry and Materials
Science, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
4. PT NIPRESS Tbk, J1.Raya
Narogong KM. 26 Cileungsi, Bogor 16820, Indonesia
5. Institute
of Physics, Chinese Academy of Sciences, Beijing, China