1. International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki,
Tsukuba, Ibaraki 305-0044, Japan
2. High Field NMR Group, National Institute for Materials Science, 3-13 Sakura,Tsukuba, Ibaraki 305-0003, Japan
3. Environmental Remediation Materials
Unit, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
4. Core Research for Evolutional Science and
Technology (CREST), Japan Science and Technology Agency (JST), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan