$\mathrm{Zr}{\mathrm{Te}}_5$ is a layered material that exhibits intricate topological effects. Intensive theoretical and experimental efforts have been devoted to try to understand the physics in this material. In this paper the temperature dependent magnetotransport properties of $\mathrm{Zr}{\mathrm{Te}}_5$ thin flakes are investigated. A characteristic temperature $T^{*}$ is observed in the temperature dependence of three different types of magnetoresistance simultaneously, which are the saturated Hall anomaly, the chiral anomaly, and the longitudinal magnetoresistance. Furthermore, the value of $T^{*}$ decreases monotonically from 200 to 160 K with increasing thickness of the $\mathrm{Zr}{\mathrm{Te}}_5$ thin flakes from 42 to 89 nm. Temperature induced topological phase transitions are attributed to the cause of such anomaly in the three types of magnetoresistance at $T^{*}$. Our findings provide a multiparameter indicator for the emergence of topological phase transition in $\mathrm{Zr}{\mathrm{Te}}_5$ and could be extended to the study of other topological materials. The temperature dependence of the three types of magnetoresistance also sheds light on the role of anomalous Hall effect in the transport properties of $\mathrm{Zr}{\mathrm{Te}}_5$.

• Received 20 May 2021
• Revised 16 August 2021
• Accepted 1 September 2021

DOI:https://doi.org/10.1103/PhysRevB.104.125439