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Berlin 2024 – wissenschaftliches Programm

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MM: Fachverband Metall- und Materialphysik

MM 47: Poster DS (joint session DS/MM/O)

MM 47.7: Poster

Mittwoch, 20. März 2024, 17:00–19:00, Poster B

Rolle of Collective Behavior of Water Molecules in Robust Ferroelectricity in Graphene Nanoribbons — •Igor Stanković1, M. Awais Aslam2, and Aleksandar Matković21Scientific Computing Laboratory, Center for the Study of Complex Systems, Institute of Physics Belgrade, University of Belgrade, 11080 Belgrade, Serbia — 2Institute of Physics, Montanuniversität Leoben, Franz Josef Strasse 18, 8700 Leoben, Austria

An understanding of the water dynamics on the edges of one and two-dimensional structures is scarce. Still, such interactions can be sufficient to perturb local electric environments, therefore offering an opportunity to harness the effect of the local dipole moment of water. Combining experiments on nanoribbon field effect transistors and molecular dynamic simulations, we elucidate a collective behaviour of water within clusters adsorbed on graphene edges. We show that these nanoribbons exhibit significant and persistent remanent fields which can be employed in ferroelectric heterostructures and neuromorphic circuits.

References [1] M. A. Aslam et al, https://doi.org/10.48550 arXiv.2304.09738

Keywords: ferroelectricity; water; graphene nanoribbon; collective dynamics; molecular dynamics

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