Atomic-site dependent pairing gap in monolayer FeSe/SrTiO${}_3$(001)- ($\sqrt{13}\times \sqrt{13}$)

Cui Ding, Zhongxu Wei, Wenfeng Dong +5

The interfacial FeSe/TiO${}_{2-\delta }$ coupling induces high-temperature superconductivity in monolayer FeSe films. Using cryogenic atomically resolved scanning tunneling microscopy/spec…