[Th-P] 2D matrials

[Th-P-20] Controlling Interfacial Ferroelectricity and Its Interaction with the Environment

〇Jonathan Brunette¹, Laurent Molino¹, Sean Walker¹, Adina Luican-Mayer¹ (1. The Univ. of Ottawa (Canada))

Twisted homobilayer transition metal dichalcogenides reconstruct into triangular domains with alternating stacking, producing spatially varying vertical polarization. Using STM/STS of graphene on twisted homobilayer WSe₂ and WS₂, we observe shifts of the graphene’s Fermi energy, revealing polarization-driven electrostatic effects.