Piezoelectric ferromagnetism in two dimensional FeCl$_2$

Kayahan Saritas; Sohrab Ismail-Beigi

Piezoelectric ferromagnetism in two dimensional FeCl$_2$

Materials Science 2022-05-03 v1

Authors: Kayahan Saritas , Sohrab Ismail-Beigi

Abstract

We predict that monolayer FeCl $_2$ is a two-dimensional piezoelectric ferromagnet (PFM) with easy-axis magnetism and a Curie temperature of 260 K. Our ab-initio calculations combined with data mining reveal 2H-FeCl $_2$ as the only easy-axis 2D monolayer PFM, and that its magnetic anisotropy increases many-fold with moderate hole doping. We develop an analysis based on magnetic anisotropy energy densities that explain the magnetic and doping-dependent behavior of FeCl $_2$ , as well as VSe $_2$ and CrI $_3$ , and can enable the design of future 2D magnetically ordered materials.

Keywords

ferromagnetism magnetic anisotropy

Cite

@article{arxiv.2205.00300,
  title  = {Piezoelectric ferromagnetism in two dimensional FeCl$_2$},
  author = {Kayahan Saritas and Sohrab Ismail-Beigi},
  journal= {arXiv preprint arXiv:2205.00300},
  year   = {2022}
}

Related papers

View all related →