Resistivity plateau and extremely large magnetoresistance in NbAs2 and TaAs2

Abstract

In topological insulators (TIs), metallic surface conductance saturates the insulating bulk resistance with de- creasing temperature, resulting in resistivity plateau at low temperatures as a transport signature originating from metallic surface modes protected by time reversal symmetry (TRS). Such characteristic has been found in several materials including Bi2Te2Se, SmB6 etc. Recently, similar behavior has been observed in metallic com- pound LaSb, accompanying an extremely large magetoresistance (XMR). Shubnikov-de Hass (SdH) oscillation at low temperatures further confirms the metallic behavior of plateau region under magnetic fields. LaSb[1] has been proposed by the authors as a possible topological semimetal (TSM), while negative magnetoresistance is absent at this moment. Here, high quality single crystals of NbAs2/TaAs2 with inversion symmetry have been grown and the resistivity under magnetic field is systematically investigated. Both of them exhibit metallic behavior under zero magnetic field, and a metal-to-insulator transition occurs when a nonzero magnetic field is applied, resulting in XMR (1.0*105% for NbAs2 and 7.3*105% for TaAs2 at 2.5 K & 14 T). With tempera- ture decreased, a resistivity plateau emerges after the insulator-like regime and SdH oscillation has also been observed in NbAs2 and TaAs2.

5 pages, double column, 5figures

References in corpus (26)

• Discovery of a Weyl Fermion Semimetal and Topological Fermi Arcs
• Experimental discovery of Weyl semimetal TaAs
• Titanic Magnetoresistance in WTe2
• Theoretical Discovery/Prediction: Weyl Semimetal states in the TaAs material (TaAs, NbAs, NbP, TaP) class
• Observation of the chiral anomaly induced negative magneto-resistance in 3D Weyl semi-metal TaAs
• Weyl semimetal phase in non-centrosymmetric transition metal monophosphides
• Negative magnetoresistance without well-defined chirality in the Weyl semimetal TaP
• Extremely large magnetoresistance and ultrahigh mobility in the topological Weyl semimetal NbP
• Observation of Weyl nodes in TaAs
• Discovery of a Weyl Fermion semimetal state in NbAs
• Quantum transport evidence for a three-dimensional Dirac semimetal phase in Cd3As2
• Experimental discovery of a topological Weyl semimetal state in TaP
• Consequences of breaking time reversal symmetry in LaSb: a resistivity plateau and extreme magnetoresistance
• Observation of Weyl nodes and Fermi arcs in TaP
• Quantum oscillations, thermoelectric coefficients and the Fermi surface of semi-metallic WTe2
• Topological surface states and Fermi arcs of the noncentrosymmetric Weyl semimetals TaAs, TaP, NbAs, and NbP
• Helicity protected ultrahigh mobility Weyl fermions in NbP
• Anisotropic giant magnetoresistance in NbSb2
• Origin of the turn-on temperature behavior in WTe${}_2$
• Pi Berry phase and Zeeman splitting of TaP probed by high field magnetotransport measurements
• Temperature dependent three-dimensional anisotropy of the magnetoresistance in WTe${}_2$
• Magnetotransport of single crystalline YSb
• Magnetotransport of single crystalline NbAs
• Large Magnetoresistance over an Extended Temperature Regime in Monophosphides of Tantalum and Niobium
• Observation of Fermi Arcs in non-Centrosymmetric Weyl Semi-metal Candidate NbP
• Chiral anomaly induced negative magnetoresistance in topological Weyl semimetal NbAs

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• Fermi surface topology and signature of surface Dirac nodes in LaBi
• Hidden Weyl Points in Centrosymmetric Paramagnetic Metals
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• Extremely large magnetoresistance from electron-hole compensation in the nodal loop semimetal ZrP${}_2$
• Pressure-induced superconductivity in topological semimetal NbAs2
• Observation of Open-Orbit Fermi Surface Topology in Extremely Large Magnetoresistance Semimetal MoAs${}_2$
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• Extremely Large Magnetoresistance and Electronic Structure of TmSb
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• Anisotropic Fermi surface probed by the de Haas-van Alphen oscillation in proposed Dirac Semimetal TaSb${}_2$
• Probing the Fermi surface and magnetotransport properties in MoAs${}_2$
• Electronic properties of TaAs2 topological semimetal investigated by transport and ARPES
• Experimental and theoretical study of the correlated compound YbCdSn: Evidence for large magnetoresistance and mass enhancement
• Bulk Fermi surface of the layered superconductor TaSe3 with three-dimensional strong topological insulator state
• Fermi Surface and Carriers Compensation of pyrite-type PtBi${}_2$ Revealed by Quantum Oscillations
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• Topological crystalline insulator state with type-II Dirac fermions in transition metal dipnictides
• Nonsaturating large magnetoresistance in the high carrier density nonsymmorphic metal CrP
• Magnetotransport properties of the layered CaAl2Si2 semimetal hosting multiple nontrivial topological states
• The de Hass-van Alphen quantum oscillations in a three-dimensional Dirac semimetal TiSb2
• Raman scattering study of large magnetoresistance semimetals TaAs${}_2$ and NbAs${}_2$
• Large nonsaturating magnetoresistance, weak anti-localization and non-trivial topological states in SrAl${}_2$Si${}_2$
• Lorentz-boost-driven magneto-optics in a Dirac nodal-line semimetal
• Termination Dependent Topological Surface States in Nodal Loop Semimetal HfP2
• Quantum transport in a compensated semimetal W2As3 with nontrivial Z2 indices
• Quantum oscillations and nontrivial topological state in a compensated semimetal TaP2
• Electric-field-induced extremely large change in resistance in graphene ferromagnets
• Magnetoresistance and Kondo effect in the nodal-line semimetal VAs${}_2$
• Superconductivity and Quantum Oscillations in Single Crystals of the Compensated Semimetal CaSb${}_2$
• Electronic structure and open-orbit Fermi surface topology in isostructural semimetals NbAs${}_2$ and W${}_2$As${}_3$ with extremely large magnetoresistance
• Generalized Design Principles for Hydrodynamic Electron Transport in Anisotropic Metals
• Shubnikov-de Haas and de Haas-van Alphen oscillations in topological semimetal CaAl4
• Large Magnetoresistance and Weak Antilocalization in V1-delta Sb2 Single Crystal
• Electronic structure in a transition metal dipnictide TaAs2
• Intertwined topological phases in TaAs2 nanowires with giant magnetoresistance and quantum coherent surface transport
• Signatures of non-trivial band topology in LaAs/LaBi heterostructure
• Materials and possible mechanisms of extremely large magnetoresistance: A review
• Magnetoresistance and Scaling Laws in Type-II Weyl Semimetal WP_2