Naslov
Nodal-line driven anomalous susceptibility in ZrSiS

Autori
M. Novak, Markus Kriener, Yuriy V. Sharlai, Grigorii P. Mikitik, Bruno Gudac, Filip Orbanić, and Ivan Kokanović

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, ostalo, znanstveni

Skup
EC-MetAC Days 2022

Mjesto i datum
Split, Hrvatska, 21.11.2022. - 24.11.2022

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Nije recenziran

Ključne riječi
Dirac semimetals

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

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA