Large nonsaturating magnetoresistance and signature of nondegenerate Dirac nodes in ZrSiS

Singha, Ratnadwip ; Pariari, Arnab Kumar ; Satpati, Biswarup ; Mandal, Prabhat (2017) Large nonsaturating magnetoresistance and signature of nondegenerate Dirac nodes in ZrSiS PNAS, 114 (10). pp. 2468-2473. ISSN 0027-8424

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Official URL: http://doi.org/10.1073/pnas.1618004114

Related URL: http://dx.doi.org/10.1073/pnas.1618004114

Abstract

Topological semimetals provide the opportunity to explore the fundamental physics of relativistic particles and offer the possibility of technological applications. However, finding robust systems with a sufficiently large range of linearly dispersing bands remains elusive. Recently discovered Dirac semimetal ZrSiS hosts multiple Dirac cones with the largest reported energy range of linear band dispersion (∼2 eV). In this work, we report transport measurements on ZrSiS, exploring extreme and anisotropic magnetoresistance with distinct quantum oscillations, enabling us to quantitatively analyze the Fermi surface properties. We have also observed the unique signature of chiral anomaly in longitudinal magnetoresistance. Our work comprehensively confirms the recent theoretical and angle-resolved photoemission spectroscopy results on ZrSiS and suggests a large family of materials as potential topological semimetals.

Item Type:Article
Source:Copyright of this article belongs to National Academy of Sciences.
ID Code:122799
Deposited On:16 Aug 2021 11:22
Last Modified:16 Aug 2021 11:22

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