"Hongwu Yu,Kou Takubo,Tadahiko Ishikawa,Shin-ya Koshihara,Masaki Hada,Toru Asaka,Keita Ozawa,Kei Shigematsu,Masaki Azuma,Yoichi Okimoto","Ultrafast Nonlinear Spectroscopy in (111) Oriented Bismuth Ferrite Oxide",,"JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN",,"  89","  6",,2020,May