Direct imaging of electron transfer and its influence on superconducting pairing at FeSe/SrTiO3 interface.

The article presents a study which examines the influence of direct imaging of electron transfer on the superconducting transition temperature (Tc) of monolayer iron selenide (FeSe) films on SrTiO3) (STO). It discusses the direct electron transfer from STO to the FeSe layer using low temperature electron energy-loss spectroscopy (EELS) and high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM).