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| Main Authors: | , , , , |
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| Format: | Preprint |
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2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2603.20709 |
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| _version_ | 1866910062488846336 |
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| author | Singh, Haribrahma Gautam, Aarti Mishra, Prabuddha Kant Umetsu, Rie Y. Ganguli, Ashok Kumar |
| author_facet | Singh, Haribrahma Gautam, Aarti Mishra, Prabuddha Kant Umetsu, Rie Y. Ganguli, Ashok Kumar |
| contents | Single crystals of LaNiSb$_3$ were grown using the Sn flux method. Structural characterization confirms that LaNiSb$_3$ crystallizes in the orthorhombic $Pbcm$ space group with lattice parameters $a = 13.0970(2)\,\mathrmÅ$, $b = 6.1400(4)\,\mathrmÅ$, and $c = 12.1270(4)\,\mathrmÅ$. Electrical resistivity measurements demonstrate metallic behavior over the entire temperature range of 3--300~K. The magnetoresistance exhibits a positive anisotropic response, attaining a maximum of $\sim 8\%$ for $H \parallel b$, with a pronounced crossover from quadratic to nearly linear field dependence. Angular-dependent MR measurements reveal a pronounced twofold symmetry upon magnetic field rotation within both the $ab$ and $ac$ crystallographic planes up to 50~K, indicating anisotropic charge transport. Hall resistivity measurements show predominantly electron-type conduction at high temperatures, with an increasing hole contribution upon cooling. The multiband character is further corroborated by the violation of Kohler's scaling and is well described within a semiclassical two-band framework. Collectively, these results suggest that LaNiSb$_3$ exhibits anisotropic multiband electronic transport and is a compelling candidate for exploring structure--property correlations in topological semimetals. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_20709 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Crystal Growth and anisotropic magneto-transport properties of semimetallic LaNiSb3 Singh, Haribrahma Gautam, Aarti Mishra, Prabuddha Kant Umetsu, Rie Y. Ganguli, Ashok Kumar Materials Science Single crystals of LaNiSb$_3$ were grown using the Sn flux method. Structural characterization confirms that LaNiSb$_3$ crystallizes in the orthorhombic $Pbcm$ space group with lattice parameters $a = 13.0970(2)\,\mathrmÅ$, $b = 6.1400(4)\,\mathrmÅ$, and $c = 12.1270(4)\,\mathrmÅ$. Electrical resistivity measurements demonstrate metallic behavior over the entire temperature range of 3--300~K. The magnetoresistance exhibits a positive anisotropic response, attaining a maximum of $\sim 8\%$ for $H \parallel b$, with a pronounced crossover from quadratic to nearly linear field dependence. Angular-dependent MR measurements reveal a pronounced twofold symmetry upon magnetic field rotation within both the $ab$ and $ac$ crystallographic planes up to 50~K, indicating anisotropic charge transport. Hall resistivity measurements show predominantly electron-type conduction at high temperatures, with an increasing hole contribution upon cooling. The multiband character is further corroborated by the violation of Kohler's scaling and is well described within a semiclassical two-band framework. Collectively, these results suggest that LaNiSb$_3$ exhibits anisotropic multiband electronic transport and is a compelling candidate for exploring structure--property correlations in topological semimetals. |
| title | Crystal Growth and anisotropic magneto-transport properties of semimetallic LaNiSb3 |
| topic | Materials Science |
| url | https://arxiv.org/abs/2603.20709 |