Ex-so-tic van der Waals heterostructures take advantage of the electrically tunable layer polarization to swap proximity exchange and spin-orbit coupling in the electronically active region. Perhaps the simplest example is Bernal bilayer graphene (BBG) encapsulated by a layered magnet from one side and a strong spin-orbit material from the other. Taking WS2/BBG/Cr2Ge2Te6 as a representative ex-so-tronic device, we employ realistic \emph{ab initio}-inspired Hamiltonians and effective electron-electron interactions to investigate the emergence of correlated phases within the random phase approximation. We find that for a given doping level, exchange and spin-orbit coupling induced Stoner and intervalley coherence instabilities can be swapped, allowing to explore the full spectrum of correlated phases within a single device.
@article{arxiv.2307.16025,
title = {Swapping exchange and spin-orbit induced correlated phases in proximitized Bernal bilayer graphene},
author = {Yaroslav Zhumagulov and Denis Kochan and Jaroslav Fabian},
journal= {arXiv preprint arXiv:2307.16025},
year = {2025}
}