Back to Search Start Over

Type-II multiferroic Hf$_{2}$VC$_{2}$F$_{2}$ MXene monolayer with high transition temperature

Authors :
Zhang, Jun-Jie
Lin, Linfang
Zhang, Yang
Wu, Menghao
Yakobson, Boris I.
Dong, Shuai
Source :
Journal of the American Chemical Society 140, 9768-9773 (2018)
Publication Year :
2019

Abstract

Achieving multiferroic two-dimensional (2D) materials should enable numerous functionalities in nanoscale devices. Until now, however, predicted 2D multiferroics are very few and with coexisting yet only loosely coupled (type-I) ferroelectricity and magnetism. Here, a type-II multiferroic MXene Hf$_{2}$VC$_{2}$F$_{2}$ monolayer is identified, where ferroelectricity originates directly from its magnetism. The noncollinear Y-type spin order generates a polarization perpendicular to the spin helical plane. Remarkably, the multiferroic transition is estimated to occur above room temperature. Our investigation should open the door to a new branch of 2D materials for pursuit of intrinsically strong magnetoelectricity.<br />Comment: 4 figures

Details

Database :
arXiv
Journal :
Journal of the American Chemical Society 140, 9768-9773 (2018)
Publication Type :
Report
Accession number :
edsarx.1907.04564
Document Type :
Working Paper
Full Text :
https://doi.org/10.1021/jacs.8b06475