Topological and Planar Hall Effect in Monoclinic van der Waals Ferromagnet NbFeTe$_2$
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| Main Authors: | , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866911431293665280 |
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| author | Mondal, Suchanda Roy, Shubhankar Manna, Poulami Singh, Ravi Prakash |
| author_facet | Mondal, Suchanda Roy, Shubhankar Manna, Poulami Singh, Ravi Prakash |
| contents | 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 $\text{NbFeTe}_2$. We report the first observation of the topological Hall effect (THE) and the planar Hall effect (PHE) in metallic $\text{NbFeTe}_2$. THE signatures persist up to 45 K, while PHE remains evident well above Curie temperature ($T_C$). 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 $\text{NbFeTe}_2$ a promising platform to advance spintronics applications. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2602_07611 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Topological and Planar Hall Effect in Monoclinic van der Waals Ferromagnet NbFeTe$_2$ Mondal, Suchanda Roy, Shubhankar Manna, Poulami Singh, Ravi Prakash Superconductivity Materials Science 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 $\text{NbFeTe}_2$. We report the first observation of the topological Hall effect (THE) and the planar Hall effect (PHE) in metallic $\text{NbFeTe}_2$. THE signatures persist up to 45 K, while PHE remains evident well above Curie temperature ($T_C$). 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 $\text{NbFeTe}_2$ a promising platform to advance spintronics applications. |
| title | Topological and Planar Hall Effect in Monoclinic van der Waals Ferromagnet NbFeTe$_2$ |
| topic | Superconductivity Materials Science |
| url | https://arxiv.org/abs/2602.07611 |