1. Research
Institute for Electronic Science, Hokkaido University, Sapporo, Hokkaido 001-0020, Japan
2. Department
of Materials Science and Engineering, Kyushu Institute of Technology, Tobata,
Kitakyushu, Fukuoka 804-8550, Japan
3. IoT
Devices Research Laboratories, NEC Corporation, Tsukuba, Ibaraki 305-8501, Japan
4. Department
of Applied Physics and Physico-Informatics, Faculty of Science and
Technology, Keio University, Yokohama, Kanagawa 223-8522, Japan
5. Graduate
School of Science, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan
6. Faculty of
Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
7. MANA, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan