1. Nanosystem Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, 305-8565, Japan
2. Tokyo Electric Power Environmental Engineering Co. Inc., 4-6-14 Shibaura,
Tokyo, 108-8537, Japan
3. Koriyama Chip Industry Co. Ltd., 1-71-2 Tsuchiuri, Koriyama, 963-0204, Japan