Speaker
Yaroslav Zhumagulov
(EPFL)
Description
The impact of proximity-induced spin-orbit coupling and Hund interactions on the correlated phase diagram of Bernal bilayer graphene (BBG) is theoretically investigated. Using an effective ab initio-fitted BBG/WS$_2$ van der Waals heterostructure model, Coulomb and Hund interactions are incorporated through the random-phase approximation to examine possible correlated phases across various displacement fields, doping levels, and temperatures. Findings indicate that Hund interaction and intervalley and Stoner fluctuations can induce superconductivity in proximitized BBG. Spin-orbit coupling, in turn, removes the degeneracy of the superconducting state in the spin subspace, causing a splitting into triplet and singlet states.
Primary author
Yaroslav Zhumagulov
(EPFL)
Co-authors
Prof.
Denis Kochan
Jaroslav Fabian
(University of Regensburg)
