Two-dimensional magnets are promising for nanoscale spintronic applications. Currently, most available candidates are based on 3d transition metal compounds, with hexagonal or honeycomb lattice geometry. Here, a GdCl3 monolayer with 4f moments is theoretically studied, which can be exfoliated from its existing bulk. Its orthorhombic structure and hendecahedral ion cages are unique in two-dimensional. Furthermore, a significant structural reconstruction is caused by the implantation of Li atoms into its interstitial position, which also lead to ferromagnetism via a double-exchange-like process. Its highly anisotropic conductance may be peculiarly useful for nanoelectronics.
@article{arxiv.2204.05898,
title = {Structural reconstruction and anisotropic conductance in $4f$-ferromagnetic monolayer},
author = {Haipeng You and Jun Chen and Jun-Jie Zhang and Ning Ding and Xiwen Zhang and Xiaoyan Yao and Shuai Dong},
journal= {arXiv preprint arXiv:2204.05898},
year = {2022}
}