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METHOD:PUBLISH
BEGIN:VEVENT
DTSTAMP:20240328T145131Z
UID:https://www.mpsd.mpg.de/events/15241/42308
DTSTART:20180913T130000Z
DTEND:20180913T140000Z
CLASS:PUBLIC
CREATED:20180911T154238Z
DESCRIPTION:Distinctive superconducting behaviors between bulk and monolaye
r FeSe make it challenging to obtain a unified picture of all FeSe-based s
uperconductors. Here\, we investigate the ultrafast quasiparticle dynamics
of an intercalated superconductor (Li1-xFex)OHFe1-ySe\, which is a bulk crystal but shares a similar electronic st
ructure with single-layer FeSe on SrTiO3. We obtain the electro
nphonon coupling (EPC) constant λ (0.24 ± 0.03)\, which well bridges tha
t of bulk FeSe crystal and single-layer FeSe/SrTiO3 [1]. Moreover\, we fin
d that such a positive correlation between λ and superconducting Tc<
/sub> holds among all knownFeSe-based superconductors\, even in line with
reported FeAs-based superconductors. Our observation indicates possible un
iversal role of EPC in the superconductivity of all known categories of ir
on-based superconductors\, which is a critical step towards achieving a un
ified superconducting mechanism for all iron-based superconductors.Referen
ces:[1] Y. C. Tian\, W. H. Zhang\, F. S. Li\, Y. L. Wu\, Q. Wu\, F. Sun\,
G. Y. Zhou\, L. L. Wang\, X. C. Ma\, Q. K. Xue\, Jimin Zhao\, Ultrafast dy
namics evidence of high temperature superconductivity in single unit cell
FeSe on SrTiO3. PRL 116\, 107001 (2016).\nVortragende(r): Jimin
Zhao
LAST-MODIFIED:20180911T154238Z
LOCATION:CFEL (Bldg. 99)\, Raum: Seminar Room V\, O1.109
ORGANIZER:Andrea Cavalleri
SUMMARY:MPSD Seminar: Ultrafast quasiparticle dynamics and electronphononco
upling in single-layer FeSe/SrTiO3 and(Li0.84Fe
0.16)OHFe0.98Se
URL:https://www.mpsd.mpg.de/events/15241/42308
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