1. The Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
2. CREST, Japan Science and Technology Agency (JST), 4-1-8 Honcho Kawaguchi, Saitama 332-0012, Japan
3. Department of Physics, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
4. Trans-scale Quantum Science Institute, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
5. Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako 351-0198, Japan