Quantized exciton-exciton annihilation in monolayer WS2 on SrTiO3 substrate with atomically flat terracesRemoveYuto Kajino, Kohei Sakanashi, Nobuyuki Aoki, Kenji Watanabe, Takashi Taniguchi, Kenichi Oto, and Yasuhiro YamadaPhys. Rev. B 103, L241410 (2021)
