1. Graduate School of Science and Engineering, Ehime University, Matsuyama 790-8577, Japan
2. Research Unit for Development of Materials Development for Efficient Utilization and Storage of Energy (E-USE), Ehime University, Matsuyama 790-8577, Japan
3. Department of Physics, Toho University, Funabashi, Chiba 274-8510, Japan
4. Graduate School of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-ku, Sapporo 060-8628, Japan
5. Geodynamics Research Center (GRC), Ehime University, Matsuyama 790-8577, Japan