Superconductivity above 28 K in single unit cell FeSe films interfaced with GaO${}_{2-\delta }$ layer on NdGaO${}_3$(110)

Haohao Yang, Guanyu Zhou, Yuying Zhu +12

We prepared single unit cell FeSe films on GaO${}_{2-\delta }$ terminated perovskite NdGaO${}_3$(110) substrates and performed ex situ transport and scanning transmission electron microsco…