We present an in-depth analysis of MnRuAs, a compound crystallizing in the P6ˉ2m symmetry with a distorted kagome lattice, revealing its distinctive structural, magnetic, and electronic properties through state-of-the-art ab initio calculations. By incorporating strong correlation effects using the DFT+U approach, we demonstrate the stabilization of MnRuAs, transforming its inherent dynamical instability into a robust ferromagnetic state with significant coupling along the c axis. The calculated magnon dispersion reveals a parabolic profile with a minimum at the Γ point, indicative of ferromagnetic behavior. Furthermore, MnRuAs exhibits intriguing electronic properties, including quasi-one-dimensional Fermi surface and the formation of nodal sphere. Our study also delves into the electronic surface states and constant energy contours, offering valuable insights into the complex physics of this material.
@article{arxiv.2501.07412,
title = {Correlation stabilized ferromagnetic MnRuAs with distorted kagome lattice},
author = {Anusree C and Andrzej Ptok and Paweł Sobieszczyk and G. Vaitheeswaran and V. Kanchana},
journal= {arXiv preprint arXiv:2501.07412},
year = {2025}
}