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 (alpha) = 84.82 T, F (beta) = 131.21 T, F- gamma = 242.36 T, F (delta )= 31.93 T, and F- delta ' = 162.33 T. In light of these collective findings, NbNiTe 5 can be defined as a quasi-1D topological semimetal.