Spectroscopic evidence of superconductivity pairing at 83 K in single-layer FeSe/SrTiO₃ films

Yu Xu, Hongtao Rong, Qingyan Wang^*, Dingsong Wu, Yong Hu, Yongqing Cai, Qiang Gao, Hongtao Yan, Cong Li, Chaohui Yin, Hao Chen, Jianwei Huang, Zhihai Zhu, Yuan Huang, Guodong Liu, Zuyan Xu, Lin Zhao^*, X. J. Zhou^*