Magnetotransport due to conductivity fluctuations in non-magnetic ZrTe₂ nanoplates

Transition metal dichalcogenides with nontrivial band structures exhibit various fascinating physical properties and have sparked intensively research interest. Here, we performed systematic magnetotransport measurements on mechanical exfoliation prepared ZrTe2 nanoplates. We revealed that the negative longitudinal magnetoresistivity observed at high field region in presence of parallel electric magnetic fields could stem from conductivity fluctuations due to excess Zr In addition, parametric plot, planar Hall resistivity as function in-plane anisotropic magnetoresistivity, has an ellipse-shaped pattern shifted orbital center, which further strengthen evidence for fluctuations. Our work provides some useful insights into transport phenomena topological materials.