Unusual magneto-transport from Si-square nets in topological semimetal HfSiS

Abstract

The class of topological semimetals comprises a large pool of compounds. Together they provide a wide platform to realize exotic quasiparticles for example Dirac, nodal line Dirac and Weyl fermions. In this letter, we report the Berry phase, Fermi surface topology and anisotropic magnetoresistance of HfSiS which has recently been predicted to be a nodal line semimetal. This compound contains large carrier density, higher than most of the known semimetals. Massive amplitudes of de Haas-van Alphen and Shubnikov-de Haas oscillations up to 20 K in 7 T assist us in witnessing nontrivial pi-Berry phase which is a consequence of topological Dirac-type dispersion of bands originating from the hybridization of px + py and dx2-y2 orbitals of square-net plane of Si and Hf atoms, respectively. Furthermore, we establish the 3D Fermi-surface which consists of very asymmetric water caltrop-like electron and barley seed-like hole pockets which account for the anisotropic magnetoresistance in HfSiS.

Main text+4 Figures+SI

References in corpus (4)

• Quantum Hall effect in a bulk antiferromagnet EuMnBi${}_2$ with magnetically confined two-dimensional Dirac fermions
• ARPES Study of the Evolution of Band Structure and Charge Density Wave Properties in RTe3 for R = Y, La, Ce, Sm, Gd, Tb and Dy
• Unexpected Dirac-Node Arc in the Topological Line-Node Semimetal HfSiS
• Square selenene and tellurene: novel group VI elemental 2D semi-Dirac materials and topological insulators

Cited by in corpus (32)

• Electronic Transport and quantum oscillation of Topological Semimetals
• Topological quantum materials from the viewpoint of chemistry
• Dirac Line-nodes and Effect of Spin-orbit Coupling in Non-symmorphic Critical Semimetal MSiS (M=Hf, Zr)
• Topological Semimetals in Square-Net Materials
• Quantum Transport in Topological Semimetals under Magnetic Fields
• Rules for Phase Shifts of Quantum Oscillations in Topological Nodal-line Semimetals
• Quantum oscillation studies of topological semimetal candidate ZrGeM (M=S, Se, Te)
• Weak Localization and Antilocalization in Nodal-Line Semimetals: Dimensionality and Topological Effects
• Proposal for detecting nodal-line semimetal surface-states with resonant spin-flipped reflection
• Electron-hole tunneling revealed by quantum oscillations in the nodal-line semimetal HfSiS
• Electronic and Magnetic Properties of Topological Semimetal Candidate NdSbTe
• Observation of multiple nodal-lines in SmSbTe
• Quantum Transport in Topological Semimetals under Magnetic Fields (II)
• Quantum oscillation evidence of topological semimetal phase in ZrSnTe
• A de Hass-van Alphen study of the Type-II Dirac semimetal candidates $A$Te${}_2$ ($A=$ Pt, Pd)
• Evidence for bulk nodal loops and universality of Dirac-node arc surface states in ZrGeXc (Xc = S, Se, Te)
• Dynamical conductivity in topological nodal-line semimetal ZrSiS
• Sondheimer oscillations as a probe of non-ohmic flow in type-II Weyl semimetal WP${}_2$
• Observation of gapless nodal-line states in NdSbTe
• Evolution of Electronic and Magnetic Properties in Topological Semimetal SmSbxTe2-x
• Magnetic susceptibility of topological semimetals
• Impurity-induced resonant states in topological nodal-line semimetals
• Magnetotransport studies of the Sb square-net compound LaAgSb${}_2$ under high pressure and rotating magnetic fields
• Observation of Landau quantization and standing waves in HfSiS
• Crossing points of nodal lines in topological semimetals and Fermi surface of ZrSiS
• Shubnikov-de Haas and de Haas-van Alphen oscillations in topological semimetal CaAl4
• Collective modes in imbalanced nodal line semimetal
• Fermi surface studies of a non-trivial topological compound YSi
• Quantum oscillation in Hopf-link semimetals
• Sign reversal of magnetoresistivity in massive nodal-line semimetals due to Lifshitz transition of Fermi surface
• Quantum oscillation and unusual protection mechanism of the surface state in nonsymmorphic semimetals
• Nodal-line driven anomalous susceptibility in ZrSiS