1. Department of Physical Science, Graduate School of Engineering
Science, Osaka University,
Toyonaka, Osaka 560-8531
2. CREST, Japan Science and Technology Corporation (JST)
3. Research Center for Materials Science at Extreme Conditions, Osaka
University,
Toyonaka, Osaka 560-8531
4. Institute for Chemical Research, Kyoto University, Uji,
Kyoto-fu 611-0011
5. Department of Chemistry, Faculty of Science, Kobe University, Kobe,
Hyogo 657-8501