<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)

(a1) and (a2) The photoemission intensity maps and LEED patterns of FeSe^BU and FeSe^BR, respectively. (b1) and (b2) The separated and degenerate γ bands for FeSe^BU and FeSe^BR, respectively. (c1) and (c2) The second derivative image of spectra around zone center, showing the hole-like band α and flat band ω , for FeSe^BU and FeSe^BR, respectively. Panels (a)–(c) are reprinted with permission from Ref. [ 15 ], copyright 2014 by Nature Communications.