Ultrafast Formation of a Photoinduced Hidden State Driven by a Bond-Order Wave in a Metal-Organic FrameworkRemoveSamiran Banu, Tatsuya Amano, Takahisa Kato, Kou Takubo, Yoichi Okimoto, Shinya Koshihara, Yohei Kawakami, Hirotake Itoh, Wataru Kosaka, Hitoshi Miyasaka, Shinichiro Iwai, Akira Takahashi, and Tadahiko IshikawaPhys. Rev. Lett. 137, 046902 (2026)