Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session JJ08: V: Superlattices and Other Artificially Structured Materials
3:00 PM–4:48 PM,
Monday, March 20, 2023
Room: Virtual Room 8
Sponsoring
Unit:
DCMP
Chair: Jingsong Zhang, University of California, Riverside
Abstract: JJ08.00005 : Prospects and limitations for short-range pairing in lighlty doped twisted transition metal dichalcogenides heterobilayers
3:48 PM–4:00 PM
Presenter:
Valentin Crépel
(Flatiron Institute (CCQ))
Author:
Valentin Crépel
(Flatiron Institute (CCQ))
In this talk, we investigate possible pairing above the Mott insulating states of twisted transition metal dichalcogenides heterobilayers within the three-particle mechanism. We find that it provides an odd effective pairing interaction in AB stacked bilayers, which favors a superconducting order parameter similar to the B-phase of superfluid Helium. In AA stacked bilayer, it rather promotes a robust and fully gapped singlet order. We investigate the robustness of these superconducting state against the long-range part of the interactions, and show that they only appear for sufficiently screened Coulomb potentials.
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