Berlin 2018 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 52: Superconductivity: Fe-based Superconductors - FeSe and LiFeAs
TT 52.2: Vortrag
Mittwoch, 14. März 2018, 09:45–10:00, HFT-FT 101
Interface high temperature superconductivity in FeSe/TiO2 — •Lili Wang and Qikun Xue — Tsinghua University, Beijing, China
The discovery of high temperature superconductivity with a superconducting gap of 20 meV in monolayer FeSe films epitaxially grown on SrTiO3 substrate has stimulated tremendous interest in superconductivity community, for it opens new avenue for both raising superconducting transition temperature and understanding the pairing mechanism of unconventional high temperature superconductivity. In this talk, I will present the experimental progress on interface enhanced superconductivity in FeSe/TiO2 interfaces, studied by scanning tunneling microscopy/spectroscopy, angle-resolved photoemission spectroscopy and transport experiments. Then I will discuss the roles of interfaces, such as charge transfer and electron-phonon coupling, inferred from those studies.
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