Institution: | 1. Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan;2. National Institute for Fusion Science, 322-6, Oroshi-cho, Toki, Gifu 509-5292, Japan;3. Division of Materials Science and Engineering, Faculty of Engineering, Hokkaido University, Kita13, Nishi8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan;4. National Institute for Materials Science, 1-2-1, Sengen, Tsukuba, Ibaraki 305-0047, Japan |