Two-dimensional (2D) van der Waals (vdW) ferromagnets have emerged as a critical class of quantum materials for next-generation, low-dimensional spintronic devices. In this study, we report a comprehensive study of the transport properties of the layered soft ferromagnet NbFeTe2. We report the first observation of the topological Hall effect (THE) and the planar Hall effect (PHE) in metallic NbFeTe2. THE signatures persist up to 45 K, while PHE remains evident well above Curie temperature (TC). The observed negative longitudinal magnetoresistance, along with the PHE, provides strong evidence for a nontrivial electronic band structure. The coexistence of perpendicular magnetic anisotropy and a substantial THE: two key properties that are highly desirable for future spintronics applications, makes monoclinic vdW ferromagnetic NbFeTe2 a promising platform to advance spintronics applications.
@article{arxiv.2602.07611,
title = {Topological and Planar Hall Effect in Monoclinic van der Waals Ferromagnet NbFeTe$_2$},
author = {Suchanda Mondal and Shubhankar Roy and Poulami Manna and Ravi Prakash Singh},
journal= {arXiv preprint arXiv:2602.07611},
year = {2026}
}