1. School of Materials and Chemical Technology Tokyo Institute of Technology 4259, Nagatsuta-cho Midori-ku Yokohama 226-8502 Japan
2. Research Center for Functional Materials National Institute for Materials Science (NIMS) 1-1, Namiki Tsukuba 305-0044 Japan
3. Department of Energy Engineering Nagoya University Furo-cho Chikusa-ku Nagoya 464-8603 Japan
4. Technical Center TDK Corporation 2-15-7 Hiagshi-Ohwada Ichikawa-shi Chiba 272-8558 Japan
5. Materials Research Center for Element Strategy (Tokyo Tech MCES) Tokyo Institute of Technology 4259 Nagatsuta-cho Midori-ku Yokohama 226-8502 Japan