Robust Magnetoelectric Coupling in FeTiO3/Ga2O3 Non-van der Waals Heterostructures
Description
Magnetoelectric coupling represents a significant breakthrough for next-generation electronics, offering the ability to achieve nonvolatile magnetic control via electrical means. In this comprehensive investigation, leveraging first-principles calculations, we unveil a robust magnetoelectric coupling within multiferroic heterostructures (HSs) by ingeniously integrating a non-van der Waals (non-vdW) magnetic FeTiO3 monolayer with the ferroelectric (FE) Ga2O3. Diverging from conventional van der Waals (vdW) multiferroic HSs, the magnetic states of the FeTiO3 monolayer can be efficiently toggled between ferromagnetic (FM) and antiferromagnetic (AFM) configurations by reversing the polarization of the Ga2O3 monolayer. This intriguing phenomenon arises from polarization-dependent substantial interlayer electron transfers and the interplay between superexchange and direct-exchange magnetic couplings of the iron atoms. The carrier-mediated interfacial interactions induce crucial shifts in Fermi level positions, decisively imparting distinct electronic characteristics near the Fermi level of composite systems. These novel findings offer exciting prospects for the future of magnetoelectric technology.
Impact and interest:
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| ID Code: | 247483 | ||
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| Item Type: | Contribution to Journal (Journal Article) | ||
| Refereed: | Yes | ||
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| Measurements or Duration: | 8 pages | ||
| DOI: | 10.1021/acs.jpclett.4c00029 | ||
| ISSN: | 1948-7185 | ||
| Pure ID: | 165393553 | ||
| Divisions: | 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 Australian National Facility. C.J. gratefully acknowledges the financial support of the Natural Science Foundation of Shandong Province under Grant No. ZR2020QA056 and the Development Plan of Youth Innovation Team of University in Shandong Province under Grant No. 2022KJ200. L.K. gratefully acknowledges financial support by the ARC Discovery Project (DP230101904). | ||
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| Copyright Owner: | 2024 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: | 22 Mar 2024 05:32 | ||
| Last Modified: | 24 Mar 2024 22:50 |
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