3 papers
cond-mat.mtrl-sci2025
3D Mapping of Defects and Moiré Corrugations via Electron Ptychography Atomic Coordinate Retrieval
Jeffrey Huang, Yichao Zhang, Sang hyun Bae +3
Defects and reconstructions in 2D moiré materials cause out-of-plane deformations which strongly modify their electronic properties but are difficult to experimentally access. Her…
cond-mat.mtrl-sci2025
Graphene-hBN interlayer interactions from quantum Monte Carlo
Kittithat Krongchon, Tawfiqur Rakib, Daniel Palmer +3
The interaction between graphene and hexagonal boron nitride (hBN) plays a pivotal role in determining the electronic and structural properties of graphene-based devices. In this w…
cond-mat.mtrl-sci2025
Atom-by-atom Imaging of Moiré Phasons using Electron Ptychography
Yichao Zhang, Ballal Ahammed, Sang Hyun Bae +7
Twisted 2D materials exhibit unique vibrational modes called moiré phonons, which arise from the moiré superlattice. Here, we demonstrate atom-by-atom imaging of phasons, an ultr…