Large magnetoresistance and de Haas–van Alphen oscillations in NbNiTe5 originated from nontrivial band topology.

Quasi-one-dimensional topological materials have emerged as a captivating area of research due to their interesting electronic properties and potential applications. NbNiTe 5 is one such quasi-1D material. In this work, we report the synthesis, structural characterization, and comprehensive investigation of the electrical transport and magnetic properties of NbNiTe 5. NbNiTe 5 crystallizes in the orthorhombic crystal system with the C m c m space group. Experimental studies have uncovered metallic nature with a remarkably high residual resistivity ratio of 103, along with intriguing spin–orbit interaction-driven nonsaturating magnetotransport properties at low temperatures. A meticulous analysis incorporating magnetoconductivity measurements unveils signatures of weak anti-localization analyzed by using the Hikami–Larkin–Nagaoka formula. Furthermore, the de Haas–van Alphen oscillations demonstrate the high mobility of charge carriers with a significantly low effective mass at five frequencies: F α = 84.82 T, F β = 131.21 T, F γ = 242.36 T, F δ = 31.93 T, and F δ ′ = 162.33 T. In light of these collective findings, NbNiTe 5 can be defined as a quasi-1D topological semimetal. [ABSTRACT FROM AUTHOR]