Atomically resolved FeSe/SrTiO <sub>3</sub> (001) interface structure by scanning transmission electron microscopy
Atomically resolved FeSe/SrTiO <sub>3</sub> (001) interface structure by scanning transmission electron microscopy
Interface-enhanced high-temperature superconductivity in one unit-cell (UC) FeSe films on SrTiO3(001) (STO) substrate has recently attracted much attention in condensed matter physics and material science. By combined in-situ scanning tunneling microscopy/spectroscopy (STM/STS) and ex-situ scanning transmission electron microscopy (STEM) studies, we report on atomically resolved structure including both lattice constants …