1. Graduate School of Science and Engineering, Ibaraki University
2. Institute for Materials Research, Tohoku University
3. Faculty of Engineering, Tokyo City University
4. J-PARC Center, Japan Atomic Energy Agency
5. National Institute for Materials Science
6. Nippon Yakin Kogyo Co., Ltd.
7. Frontier Research Center for Applied Atomic Sciences, Ibaraki University
8. Institute of Multidisciplinary Research for Advanced Materials, Tohoku University