Recent experimental success in the realization of two-dimensional (2D) magnetism has stimulated the search for new magnetic 2D materials with strong magnetic anisotropy and high Curie temperature. One promising subgroup of 2D magnetic systems are Dirac half-metals (DHM) which have gained a lot of interest recently, as they host a high-temperature quantum anomalous Hall effect (QAHE). This article discusses predictions for intrinsic DHMs and identifies them as realizations of the Kane-Mele Hubbard model at quarter filling. This proposed unification contributes to a firmer understanding of these materials and suggests pathways for the discovery of new DHM systems.
@article{arxiv.2101.03352,
title = {Quarter-filled Kane-Mele Hubbard model: Dirac half-metals},
author = {Simon Mellaerts and Ruishen Meng and Valeri Afanasiev and Jin Won Seo and Michel Houssa and Jean-Pierre Locquet},
journal= {arXiv preprint arXiv:2101.03352},
year = {2021}
}