Affiliation: | 1. World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Namiki 1‐1, Tsukuba, Ibaraki 305‐0044 (Japan), Fax: (+81)?29‐860‐4706 http://www.nims.go.jp/mana/members/independent_scientist/y_yamauchi/index.html;2. Department of Applied Chemistry and Major in Nanoscience and Nanoengineering, Faculty of Science & Engineering, Waseda University, Ohkubo 3‐4‐1, Shinjuku, Tokyo 169‐8555 (Japan);3. PRESTO Science and Technology Agency (JST), Honcho 4‐1‐8, Kawaguchi‐shi, Saitama 332‐0012 (Japan);4. Kagami Memorial Research Institute for Materials Science and Technology, Waseda University, Nishi‐waseda 2‐8‐26, Shinjuku, Tokyo 169‐0051 (Japan);5. Nanoelectronics Research Institute, Advanced Industrial Science and Technology (AIST), 1‐1‐1 Higashi, Tsukuba, Ibaraki 305‐8561 (Japan);6. Spintronics Group, Magnetic Materials Center, National Institute for Materials Science (NIMS), 1‐2‐1 Sengen, Tsukuba, Ibaraki 305‐0047 (Japan) |