1. Division
of Electrical Engineering and Computer Science, Kanazawa University, Kanazawa 920-1192, Japan
2. Precursory
Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST), Saitama 332-0012, Japan
3. Advanced
Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
4. Graduate
School of Environmental Studies, Tohoku University, Sendai 980-8579, Japan
5. Department
of Applied Chemistry, Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan