Weak antilocalization and Shubnikov-de Haas oscillations in CaCuSb single crystal

Abstract

Quantum oscillations in both linear and Hall resistivities and weak antilocalization (WAL) are barely observed in bulk single crystals. Here we report the transport properties of a CaCuSb single crystal that crystallizes in the hexagonal crystal structure. The magnetotransport studies reveal WAL and Shubnikov-de Haas (SdH) quantum oscillations with a unique frequency at 314 T. A cusp-like behavior in the low field regime of magnetotransport for J // (ab)-plane and B // [0001] confirms the WAL in CaCuSb. Angular-dependent normalized magnetoconductance and SdH oscillations studies reveal that the observed phenomena originate from the 2D transport channels. The high magnetic field (up to 45 T) experiments demonstrate plateau-like features in the Hall measurements. The first-principles calculations unfold that CaCuSb is a non-topological semimetal with dominant hole carries at the Fermi level. Our study reveals that CaCuSb is a promising candidate to explore the quasi-2D quantum transport phenomenon in the transition metal pnictide materials.

References in corpus (22)

• Topological Insulators
• The structure of suspended graphene sheets
• Topological Semimetals
• Impurity effect on weak anti-localization in the topological insulator Bi2Te3
• FermiSurfer: Fermi-surface viewer providing multiple representation schemes
• Crossover between weak localization and weak antilocalization in magnetically doped topological insulator
• Electronic Transport and quantum oscillation of Topological Semimetals
• Tunable Surface Conductivity in Bi2Se3 Revealed in Diffusive Electron Transport
• Superconductivity in the topological semimetal YPtBi
• Quantum Hall effect in a bulk antiferromagnet EuMnBi${}_2$ with magnetically confined two-dimensional Dirac fermions
• Weak Antilocalization Effect and Noncentrosymmetric Superconductivity in a Topologically Nontrivial Semimetal LuPdBi
• Extremely large non-saturating magnetoresistance and ultrahigh mobility due to topological surface states in metallic Bi2Te3 topological insulator
• Shubnikov-de Haas oscillations, weak antilocalization effect and large linear magnetoresistance in the putative topological superconductor LuPdBi
• Observation of topological transition of Fermi surface from a spindle-torus to a torus in large bulk Rashba spin-split BiTeCl
• Low-Temperature Eutectic Synthesis of PtTe2 with Weak Antilocalization and Controlled Layer Thinning
• Odd-integer quantum Hall states and giant spin susceptibility in p-type few-layer WSe2
• Quantum Oscillations in iron-doped topological insulator Sb2Te3 crystals
• Starfruit-like nodal semimetal to Dirac and Weyl semimetal state in CaAuAs
• Prediction of three-fold fermions in a nearly-ideal Dirac semimetal BaAgAs
• Weak antilocalization in a noncentrosymmetric CaAgBi single crystal
• Anomalous quantum oscillations and evidence for a non-trivial Berry phase in SmSb
• Spin-orbit coupling and weak antilocalization in thermoelectric material $\beta$-K${}_2$Bi${}_8$Se${}_{13}$

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• Insulating Half-Heusler TmPdSb with Unusual Band Order and Metallic Surface States
• Superconductivity and weak anti-localization in nodal-line semimetal SnTaS_2