We theoretically study the interplay between magnetism and a heavy Fermi liquid in the AB stacked transition metal dichalcogenide bilayer system MoTe2/WSe2 in the regime in which the Mo layer supports localized magnetic moments coupled by interlayer electron tunnelling to a weakly correlated band of itinerant electrons in the W layer. We show that the interlayer electron transfer leads to a chiral Kondo exchange, with consequences including a strong dependence of the Kondo temperature on carrier concentration, a topological hybridization gap and an anomalous Hall effect. The theoretical model exhibits two phases, a small Fermi surface magnet and a large Fermi surface heavy Fermi liquid; the transition between them is first order. A low-energy theory is developed for the the transport properties of the two states. Implications of our results for present and future experiments on MoTe2/WSe2 bilayer heterostructures are discussed.
@article{arxiv.2207.06476,
title = {Chiral Kondo Lattice in Doped MoTe$_2$/WSe$_2$ Bilayers},
author = {Daniele Guerci and Jie Wang and Jiawei Zang and Jennifer Cano and J. H. Pixley and Andrew Millis},
journal= {arXiv preprint arXiv:2207.06476},
year = {2023}
}