Magnetotransport properties of the new-type topological semimetal ZrTe
arXiv:1707.00942 · doi:10.1103/PhysRevB.101.245127
Abstract
We report the first experimental results of the magnetoresistance, Hall effect, and quantum Shubnikov-de Haas oscillations on single crystals of ZrTe, which was recently predicted to be a new type of topological semimetal hosting both triply degenerate crossing points and Weyl fermion state. The analysis of Hall effect and quantum oscillations indicate that ZrTe is a multiband system with low carrier density, high carrier mobility, small cross-sectional area of Fermi surface, and light cyclotron effective mass, as observed in many topological semimetals. Meanwhile, the angular dependence of the magnetoresistance and the quantum-oscillation frequencies further suggest that ZrTe possesses a three-dimensional Fermi surface that is rather complex. Our results provide a new platform to realize exotic quantum phenomena related to the new three-component fermions distinct from Dirac and Weyl fermions.
References in corpus (34)
- Discovery of a Weyl Fermion Semimetal and Topological Fermi Arcs
- Classification of topological quantum matter with symmetries
- Discovery of a Three-dimensional Topological Dirac Semimetal, Na3Bi
- Dirac semimetal and topological phase transitions in A3Bi (A=Na, K, Rb)
- Experimental discovery of Weyl semimetal TaAs
- Topological nodal semimetals
- Titanic Magnetoresistance in WTe2
- Three Dimensional Dirac Semimetal and Quantum Transports in Cd3As2
- Colloquium: Topological Band Theory
- Observation of the chiral anomaly induced negative magneto-resistance in 3D Weyl semi-metal TaAs
- Ultrahigh mobility and giant magnetoresistance in the Dirac semimetal CdAs
- Weyl semimetal phase in non-centrosymmetric transition metal monophosphides
- Negative magnetoresistance without well-defined chirality in the Weyl semimetal TaP
- Beyond Dirac and Weyl fermions: Unconventional quasiparticles in conventional crystals
- Topological Node-Line Semimetal in Three Dimensional Graphene Networks
- Topological Semimetals Predicted from First-principles Calculations
- Experimental Observation of Three-Component 'New Fermions' in Topological Semimetal MoP
- Triple Point Topological Metals
- Topological Semimetals with Triply Degenerate Nodal Points in θ-phase Tantalum Nitride
- Numerical extraction of de Haas - van Alphen frequencies from calculated band energies
- Co-existence of Weyl Fermion and Massless Triply Degenerate Nodal Points
- Unconventional mass enhancement around the Dirac nodal loop in ZrSiS
- Transport Properties and Diamagnetism of Dirac Electrons in Bismuth
- Nearly massless Dirac fermions and strong Zeeman splitting in the nodal-line semimetal ZrSiS probed by de Haas--van Alphen quantum oscillations
- Tantalum Monoarsenide: an Exotic Compensated Semimetal
- Electron scattering in tantalum monoarsenide
- New fermions on the line in topological symmorphic metals
- Three-component fermions with surface Fermi arcs in topological semimetal tungsten carbide
- Chiral Quasiparticles at the Fermi Surface of the Weyl Semimetal TaAs
- Magnetotransport properties of the triply degenerate node topological semimetal tungsten carbide
- Magnetic torque anomaly in the quantum limit of the Weyl semi-metal NbAs
- Extremely high conductivity observed in the triple point topological metal MoP
- Elastic and transport properties of topological semimetal ZrTe
- Uncovering Weyl Fermions in the Quantum Limit of NbP