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O: Fachverband Oberflächenphysik
O 29: Poster: 2D Materials
O 29.27: Poster
Dienstag, 19. März 2024, 12:30–14:30, Poster A
Self-assembled Moiré superstructure of MXene — •Andrea Cabero del Hierro1, Kuanysh Zhussupbekov1,2, Samuel Berman1, Dahnan Spurling2, Ainur Zhussupbekova1,2, David D. O'Regan1, Igor V. Shvets1, and Valeria Nicolosi2,3 — 1School of Physics, Trinity College Dublin, Dublin 2, D02 PN40, Ireland — 2School of Chemistry, Trinity College Dublin, Dublin 2, D02 PN40, Ireland — 3Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and Bioengineering Research (AMBER), Trinity College Dublin, Dublin 2, Ireland
The atomically reconstructed moiré superlattice and its impact on the microscopic electronic structure remains absent. In this investigation, we meticulously inspect and compare the self-assembled moiré superlattices of MXene. Employing a combination of experimental scanning tunneling microscopy/spectroscopy observations and ab initio simulations, we investigated three distinct self-assembled moiré patterns characterized by wavelengths approximately around 2.32 nm, 2.17 nm, and 1.12 nm. Our results illuminate a non-monotonic behavior in the moiré potential concerning periods on the valence band side. This research not only contributes to a detailed comprehension of MXene's moiré phenomena but also establishes a fresh foundation for further exploration into unique correlated phases.
Keywords: MXene; STM; STS; DFT; moiré supertructure