〇Tomoya Higo^1,2, Hanshen Tsai^1,2, Kouta Kondou^2,3, Takuya Nomoto^2,4, Akito Sakai^2,5, Ayuko Kobayashi¹, Takafumi Nakano^2,6, Kay Yakushiji^2,6, Ryotaro Arita^2,3,4, Shinji Miwa^1,2,7, Yoshichika Otani^1,2,3,7, Satoru Nakatsuji^1,2,5,7,8 (1.ISSP, UTokyo, 2.JST CREST, 3.RIKEN CEMS, 4.Dept. of Appl. Phys., UTokyo, 5.Dept. of Phys., UTokyo, 6.AIST, 7.Trans-Quantum Science Institute, UTokyo, 8.Johns Hopkins Univ.)