Prediction of two-dimensional ferromagnetic ferroelectric VOF2 monolayer,Physical Chemistry Chemical Physics

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Prediction of two-dimensional ferromagnetic ferroelectric VOF2 monolayer
Physical Chemistry Chemical Physics ( IF 2.9 ) Pub Date : 2020-09-28 , DOI: 10.1039/d0cp04208k
Hai-Peng You _{1,

2,

3,

4} , Ning Ding _{1,

2,

3,

4} , Jun Chen _{1,

2,

3,

4} , Shuai Dong _{1,

2,

3,

4}

Affiliation

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.

中文翻译：

二维铁磁铁电体VOF2单层的预测

如今，设计和寻找具有多种功能特性的材料是实现高性能电子设备的关键。在许多候选材料中，二维多铁材料具有巨大的潜力，可用于高度集成的磁电器件，例如高密度非易失性存储器。在这里，我们预测二维材料VOF ₂单层具有固有的铁电和铁磁特性。VOF ₂单层在VOX ₂（X：卤素）卤氧化物家族中拥有最大的面内铁电极化（332 pC m ^-1）。与其他VOX ₂不同当磁性基态为反铁磁或非共线螺旋织构的单层时，VOF ₂单层具有坚固的铁磁基态，这是罕见的，但非常理想。我们的理论预测为进一步追求具有高性能磁电的二维多铁性材料提供了一个很好的候选者和起点。

更新日期：2020-10-20

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