Prediction of Room-Temperature Electric Field Reversal of Magnetization in the Family of A4B3O9 Layered Oxides

Dey, Urmimala; McCabe, Emma E.; Íñiguez-González, Jorge; Bristowe, Nicholas C.

Abstract

The promise of a strong magnetoelectric (ME) coupling in a multiferroic (MF) material is not only of fundamental interest, but also forms the basis of next generation memory devices where the direction of magnetization can be reversed by an external electric field. Using group-theory led first-principles calculations, we have identified a hitherto unknown polar phase of the {𝐴4𝐵3𝑂9} layered oxides, where the polar mode couples to the magnetic modes through a rare 𝛤-point magnetoelectric-multiferroic coupling scheme such that the net magnetization can be directly reversed by an electric field switching of the polar mode. Furthermore, in agreement with previous experimental observations, we predict room-temperature magnetism in {𝐴4𝐵3𝑂9} oxides which indicates the promising practical applications of these compounds in the next generation memory devices.

Citation

Dey, U., McCabe, E. E., Íñiguez-González, J., & Bristowe, N. C. (in press). Prediction of Room-Temperature Electric Field Reversal of Magnetization in the Family of A4B3O9 Layered Oxides. Physical Review Letters,

• Journal Article Type: Article
• Acceptance Date: Feb 28, 2025
• Deposit Date: Mar 6, 2025
• Journal: Physical Review Letters
• Print ISSN: 0031-9007
• Electronic ISSN: 1079-7114
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Public URL: https://durham-repository.worktribe.com/output/3681402
• Publisher URL: https://journals.aps.org/prl/