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Prediction of two-dimensional ferromagnetic ferroelectric VOF2 monolayer

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Abstract

Nowadays, designing and searching for materials with multiple functional characteristics are the keys to achieving high-performance electronic devices. Among many candidates, two-dimensional multiferroic materials have great potential to be applied in highly integrated magnetoelectric devices, such as high-density non-volatile memories. Here, we predict a two-dimensional material, VOF2 monolayer, to possess intrinsic ferroelectric and ferromagnetic properties. The VOF2 monolayer owns the largest in-plane ferroelectric polarization (332 pC m−1) in the family of VOX2 (X: halogen) oxyhalides. Different from other VOX2 monolayers whose magnetic ground states are antiferromagnetic or noncollinear spiral textures, the VOF2 monolayer owns a robust ferromagnetic ground state, which is rare but highly desirable. Our theoretical prediction provides a good candidate and starting point for the further pursuit of more two-dimensional multiferroic materials with high-performance magnetoelectricity.

Graphical abstract: Prediction of two-dimensional ferromagnetic ferroelectric VOF2 monolayer

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Article information


Submitted
09 Aug 2020
Accepted
28 Sep 2020
First published
28 Sep 2020

Phys. Chem. Chem. Phys., 2020, Advance Article
Article type
Paper

Prediction of two-dimensional ferromagnetic ferroelectric VOF2 monolayer

H. You, N. Ding, J. Chen and S. Dong, Phys. Chem. Chem. Phys., 2020, Advance Article , DOI: 10.1039/D0CP04208K

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