1. Graduate
School of Chemical Science and Engineering, Hokkaido University, Sapporo 060-8628, Japan
2. Research
Institute for Electronic Science, Hokkaido University, Sapporo 001-0021, Japan
3. Institute
of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, Miyagi 980-8577, Japan
4. Japan Synchrotron Radiation Research Institute/SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
5. RIKEN SPring-8 Center, 1-1-1
Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
6. Institute
of Physics, Academia Sinica, 128 Sec. 2, Academia Rd., Nankang, Taipei 11529, Taiwan