1. Division of Electrical Engineering and Computer Science, Kanazawa University, Kakuma-machi, 920-1192 Kanazawa, Japan
2. Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, 920-1192 Kanazawa, Japan
3. Faculty of Frontier Engineering, Kanazawa University, Kakuma-machi, 920-1192 Kanazawa, Japan
4. Department of Applied Physics, Aalto University, FI-00076 Helsinki, Finland
5. EBARA Corporation, 144-8510 Tokyo, Japan