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Title: ARPES on Electronic Structure and Superconducting Gap of FeSe Films/SrTiO₃
Originating Office: IAS
Speaker: Zhou, Xingjiang
Issue Date: 14-Dec-2012
Event Date: 14-Dec-2012
Group/Series/Folder: Record Group 8.15 - Institute for Advanced Study
Series 3 - Audio-visual Materials
Location: 8.15:3 box 1.8
Notes: IAS Asia Pacific Workshop on Condensed Matter Physics. Talk no. 8
Title from title slide.
"̳x" and "2-̳y" are subscript.
Host: Institute for Advanced Study.
Sponsor: The Collaborative Research Fund (CRF), The Research Grants Council (RGC).
Abstract: High resolution angle-resolved photoemission measurements have been carried out to study the electronic structure and superconducting gap of the newly discovered AxFe2-ySe₂ [A=K, (Tl,K) and (Tl,Rb)] superconductors and single-layer FeSe superconductor grown on SrTiO₃ substrate. Distinct Fermi surface topology and nearly isotropic superconducting gap without nodes are observed in these systems. Phase diagram is established and high temperature superconductivity at ~65K is realized in tuning the carrier concentration of the single-layer FeSe film by an annealing process. Implications of these results on the superconductivity mechanism of the iron-based superconductors will be discussed.
Duration: 36 min.
Appears in Series:8.15:3 - Audio-visual Materials
Videos for Public -- Distinguished Lectures