<bold><em> In-situ</em></bold> spectroscopic studies and interfacial engineering on FeSe/oxide heterostructures: Insights on the interfacial superconductivity<xref ref-type="fn" rid="cpb151075fn1">*</xref>

In-situ spectroscopic studies and interfacial engineering on FeSe/oxide heterostructures: Insights on the interfacial superconductivity*

Peng Rui^a),^b), Xu Hai-Chao^a),^b), Feng Dong-Lai^a),^b)

Superconducting gap closing temperature T _g as a function of in-plane lattice constant a . According to Ref. [ 15 ], the T _g of FeCoSe^SR is expected to be around 4 K, with the error bar between 0 K and 30 K. (b) Superconducting gap closing temperature as a function of the effective mass m _e of band α at the zone center. (c) Superconducting gap closing temperature versus the energy scale of the phonon mode represented as E _M. Panels (a)–(c) are reprinted with permission from Ref. [ 15 ], copyright 2014 by Nature Communications.