Stacking-Dependent Interlayer Ferroelectric Coupling and Moire Domains in a Twisted AgBiP2Se6 Bilayer
Description
Rotation/twisting of bilayers could induce unprecedented new physics due to stacking-dependent electronic properties and interlayer coupling, such as the superconductivity in twisted bilayer graphene, which can find applications in electronics. However, deep understanding at the atomic/electronic levels is limited by the capability of accurate theoretical simulations. Here, from first-principles simulations, we found that the AgBiP2Se6 bilayer has stacking-dependent ferroelectric ground states due to interlayer polarization coupling. Interlayer ferroelectric coupling is preferred in an AA-stacked AgBiP2Se6 bilayer, but antiferroelectric coupling is preferred in AB- or AC-stacked configurations. The ferroelectric Moiré patterns are thus observed in a twisted AgBiP2Se6 bilayer with ferroelectric (antiferroelectric) interlayer couplings in the AA (AB/AC)-stacked areas. Our work for the first time unveils the effects of twisting/rotation on interlayer polarization coupling and provides a real example of ferroelectric Moiré patterns.
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ID Code: | 228982 | ||||||
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Item Type: | Contribution to Journal (Journal Article) | ||||||
Refereed: | Yes | ||||||
ORCID iD: |
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Additional Information: | Funding Information: We acknowledge the grants of high-performance computer time from the computing facility at the Queensland University of Technology, the Pawsey Supercomputing Centre, and the Australian National Computational Infrastructure (NCI). Y.G. gratefully acknowledges financial support by the ARC Discovery Project (DP200102546). | ||||||
Measurements or Duration: | 6 pages | ||||||
DOI: | 10.1021/acs.jpclett.2c00177 | ||||||
ISSN: | 1948-7185 | ||||||
Pure ID: | 107250373 | ||||||
Divisions: | Current > Research Centres > Centre for Materials Science Current > QUT Faculties and Divisions > Faculty of Science Current > QUT Faculties and Divisions > Faculty of Engineering Current > Schools > School of Mechanical, Medical & Process Engineering |
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Funding Information: | We acknowledge the grants of high-performance computer time from the computing facility at the Queensland University of Technology, the Pawsey Supercomputing Centre, and the Australian National Computational Infrastructure (NCI). Y.G. gratefully acknowledges financial support by the ARC Discovery Project (DP200102546). | ||||||
Funding: | |||||||
Copyright Owner: | 2022 American Chemical Society | ||||||
Copyright Statement: | This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au | ||||||
Deposited On: | 23 Mar 2022 22:27 | ||||||
Last Modified: | 07 Aug 2024 21:02 |
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