*Mizuki Miyajima1, Fahmi Astuti2,3, Takahito Fukuda1, Masashi Kodani1, Takehito Nakano4, Akira Matsuo5, Koichi Kindo5, Isao Watanabe2,3, Tatsuo C Kobayashi1, Takashi Kambe1
(1. Okayama University(Japan), 2. RIKEN Nishina center(Japan), 3. Hokkaido University(Japan), 4. Ibaraki University(Japan), 5. The University of Tokyo(Japan))
Keywords:Quantum magnetism