Nodal-line driven anomalous susceptibility in ZrSiS

We demonstrate a unique approach to test the signature of nodal-line physics by thermodynamic methods. By measuring magnetic susceptibility in ZrSiS we found an intriguing temperature-driven crossover from dia- paramagnetic behavior. show that anomalous behavior represents real underlying through means chemical pressure (isovalent substitution Zr for Hf), quantum oscillations, and theoretical modeling. The part is orbital nature, it arises due vicinity Fermi level degeneracy point created crossing two nodal lines. Furthermore, unexpected Lifshitz topological transition at revealed tuning level. present findings give attractive starting various physics-related phenomena be tested methods other related materials.