With the support by the National Natural Science Foundation of China,the Ministry of Science and Technology of China,and Chinese Academy of Sciences,Prof.Zhao Jimin (赵继民) at the Institute of Physics,CAS collaborated with the Xue Team (Profs.Xue Qikun (薛其坤),Ma Xucun (马旭村),Wang Lili (王立莉)) at Tsinghua University to investigate the ultrafast dynamics of single-layer FeSe on SrTiO3 substrate,an interface high-temp superconductor.They observed SC evidence and obtained the e-phonon coupling strength,which was published in Phys Rev Lett (2016,116:107001).