Using symmetry analysis and density functional theory calculations, we uncover the nature of Dzyaloshinskii-Moriya interaction in Fe3GeTe2 monolayer. We show that while such an interaction might result in small distortion of the magnetic texture on the short range, on the longrange Dzyaloshinskii-Moriya interaction favors in-plane N\'eel spin-spirals along equivalent directions of the crystal structure. Whereas our results show that the observed N\'eel skyrmions cannot be explained by the Dzyaloshinskii-Moriya interaction at the monolayer level, they suggest that canted magnetic texture shall arise at the boundary of Fe3GeTe2 nanoflakes or nanoribbons and, most interestingly, that homochiral planar magnetic textures could be stabilized.
@article{arxiv.2004.01616,
title = {Elusive Dzyaloshinskii-Moriya interaction in Fe$_3$GeTe$_2$ monolayer},
author = {Slimane Laref and Kyoung-Whan Kim and Aurelien Manchon},
journal= {arXiv preprint arXiv:2004.01616},
year = {2020}
}