What makes the Tc of FeSe/SrTiO3 so high?*
Lee Dung-Haia),b)
       
Proposals of high T c structures. (a) The interface between a metal and an antiferromagnet consisting of local moments. The red dashed lines represent single particle hybridization. (b) A variant of the FeSe/STO where additional layers of local-moment antiferromagnet are grown on top of FeSe.