1. Research Institute of Innovative Technology for the Earth (RITE), 9-2 Kizugawadai, Kizu-cho,
Soraku-gun, Kyoto 619-0292, Japan, Graduate School of Materials Science, Nara Institute of
Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara 630-0101, Japan, and
Division of Materials Science and Chemical Engineering, Faculty of Engineering, Yokohama
National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan