Superconductivity below 20 K in heavily electron-doped surface layer of FeSe bulk crystal
Superconductivity below 20 K in heavily electron-doped surface layer of FeSe bulk crystal
A superconducting transition temperature Tc as high as 100 K was recently discovered in 1 monolayer (1ML) FeSe grown on SrTiO3 (STO). The discovery immediately ignited efforts to identify the mechanism for the dramatically enhanced Tc from its bulk value of 7 K. Currently, there are two main views on …