Anisotropic Berry phase in the Dirac nodal-line semimetal ZrSiS: The effect of spin-orbit coupling

Abstract

The topological nodal-line semimetals (NLSMs) possess a loop of Dirac nodes in the k space with linear dispersion, different from the point nodes in Dirac/Weyl semimetals. While the quantum transport associated with the topologically nontrivial Dirac fermions has been investigated extensively, features uniquely associated with the extended nodal lines remain to be demonstrated. Here, we investigate the quantum oscillations (QOs) in the nodal-line semimetal ZrSiS, with the electron transport along the c axis, and magnetic field rotating in the ab plane. The extremal orbits identified through the field orientation dependence of the QOs interlock with the nodal line, leading to a nonzero Berry phase. Most importantly, the Berry phase shows a significant dependence on the magnetic field orientation, which we argue to be due to the finite spin-orbit coupling gap. Our results demonstrate the importance of the spin-orbit coupling and the nodal-line dispersion in understanding the quantum transport of NLSMs.

References in corpus (10)

• Topological nodal line semimetals
• Topological Semimetals
• Dirac Line-nodes and Effect of Spin-orbit Coupling in Non-symmorphic Critical Semimetal MSiS (M=Hf, Zr)
• Nontrivial Berry phase in magnetic BaMnSb2 semimetal
• Flat optical conductivity in ZrSiS due to two-dimensional Dirac bands
• Observation of Effective Pseudospin Scattering in ZrSiS
• Possible pressure-induced topological quantum phase transition in the nodal line semimetal ZrSiS
• Experimental evidence of crystal symmetry protection for the topological nodal line semimetal state in ZrSiS
• Origin of the butterfly magnetoresistance in ZrSiS
• Crossing points of nodal lines in topological semimetals and Fermi surface of ZrSiS

Cited by in corpus (6)

• Symmetry-selective quasiparticle scattering and electric field tunability of the ZrSiS surface electronic structure
• Weak Antilocalization and topological edge states in PdSn${}_4$
• Magnetotransport and Berry phase Tuning in Gd-doped Bi2Se3 Topological Insulator Single Crystals
• Tight-binding model with sublattice-asymmetric spin-orbit coupling for square-net nodal line Dirac semimetals
• Fermi Surface Topology and Magneto-transport Properties of Superconducting Pd${}_3$Bi${}_2$Se${}_2$
• Fermi surface and Berry phase analysis for Dirac nodal line semimetals: cautionary tale to SrGa${}_2$ and BaGa${}_2$