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arXiv · 2602.10939

Low magnetic moment and unconventional magneto-transport in half-Heusler alloy CoVGe

Ravinder Kumar·Jyotiraditya Pandey·Shoaib Akhtar·Sachin Majee·Dibyendu Majee·Samik DuttaGupta·Sachin Gupta
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Abstract

In the present work, we experimentally realize CoVGe for the first time and investigate its structural, magnetic, and transport properties, supported by theoretical calculations. The material crystallizes in a cubic structure and exhibits a very low magnetic moment of 0.13 {\mu}B per formula unit at 5 K. The temperature dependence of electrical resistivity suggests half-metallic behaviour. Magnetoresistance shows a positive, non-saturating linear field dependence at low temperature that gradually weakens with increasing temperature. The combination of low magnetic moment and unusual magnetotransport behaviour positions CoVGe as a promising platform for exploring spin-dependent transport in Heusler-based materials.

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Ravinder Kumar, Jyotiraditya Pandey, Shoaib Akhtar, Sachin Majee, Dibyendu Majee, Samik DuttaGupta, Sachin Gupta. 2026-02-11. Low magnetic moment and unconventional magneto-transport in half-Heusler alloy CoVGe. https://doi.org/10.1016/j.jmmm.2026.174444

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