1. Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba,
Aramaki, Sendai 980-8578, Japan
2. Department of Applied Physics, Nagoya University, Chikusa-ku, Nagoya 464-603, Japan
3. Institute of Inorganic and Applied Chemistry, University of Hamburg, Martin-Luther-King-Platz
6, 20146 Hamburg, Germany
4. Division of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
5. Research Center for Low Temperature and Materials Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501,
Japan Chikusa-ku, Nagoya 464-603, Japan
6. Research Group of Solid Material Chemistry, Graduate School of Science, Hiroshima University,
1-3-1 Kagamiyama, Higashihiroshima, Hiroshima, 739-8526, Japan
7. Spectroscopy and Imaging Division, Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto,
Sayo, Sayou-gun, Hyogo 679-5198, Japan
8. School of Materials Science and Engineering, Nankai University, Tianjin 300350, China