1. Graduate School of Science, Hokkaido University, N10W8, Sapporo, 060-0810, Japan, Frontier Research System, Institute of Physical and Chemical Research (RIKEN Institute), 1-12, Hirosawa, Wako, Saitama, 351-0198, Japan, Research Institute for Electronic Science, Hokkaido University, N12W6, Sapporo, 060-0812, Japan, PRESTO, Japan Science and Technology Corporation (JST), N12W6, Sapporo, 060-0812, Japan, and Nanotechnology Research Center, Research Institute for Electronic Science, Hokkaido University,...