Electronic Structure and Superconductivity in Bilayer FeSe$\backslash$SrTiO$_3$ Films
ORAL
Abstract
We have carried out high resolution angle-resolved photoemission (ARPES) measurements on bilayer FeSe films grown on the SrTiO$_3$(001) substrate by the MBE method. Detailed doping evolution of the electronic structure has been investigated through an annealing process. Similar to the single-layer FeSe film, two phases are observed during the annealing process which coexist and compete. On the other hand, the bilayer FeSe film exhibits obviously different behaviors from that of the single layer FeSe film. Details of the experiment and their implications will be discussed.
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Authors
Xu Liu
National Lab for Superconductivity, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China
Wenhao Zhang
State Key Lab of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
Junfeng He
National Lab for Superconductivity, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China
Lin Zhao
National Lab for Superconductivity, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China
Defa Liu
National Lab for Superconductivity, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China
Shaolong He
National Lab for Superconductivity, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China
Chuangtian Chen
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
Zuyan Xu
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
Xucun Ma
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
Qikun Xue
State Key Lab of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
Xingjiang Zhou
National Lab for Superconductivity, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China
