Moir\'e superlattices are generally assumed to act only at the interface where lattice mismatch or twist occurs. Here, we study charge transport in large-angle helical twisted trilayer graphene, where interlayer tunneling is strongly reduced. When only the top monolayer graphene is aligned with hBN, the electronic response reorganizes into a moir\'e-modulated monolayer and a remaining twisted bilayer graphene subsystem. Despite the absence of any explicit structural moir\'e in the twisted bilayer, we observe satellite-like features in its electronic response that run parallel to the primary spectrum and are locked to the density scale of the hBN/graphene moir\'e. These findings indicate that a moir\'e potential may not be confined to its structural interface and can, through electrostatic coupling, influence a spatially separated Dirac subsystem even in the absence of strong interlayer tunneling.
@article{arxiv.2604.12614,
title = {Remote Moir\'e Modulation of Decoupled Dirac Subsystems in Twisted Trilayer Graphene},
author = {Dohun Kim and Junsik Choe and Takashi Taniguchi and Kenji Watanabe and Gil Young Cho and Youngwook Kim},
journal= {arXiv preprint arXiv:2604.12614},
year = {2026}
}