Antiferromagnetism and superconductivity in the half-Heusler semimetal HoPdBi

Abstract

We observed the coexistence of superconductivity and antiferromagnetic order in the single-crystalline ternary pnictide HoPdBi, a plausible topological semimetal. The compound orders antiferromagnetically at $T_N=$1.9 K and exhibits superconductivity below $T_c=$0.7 K, which was confirmed by magnetic, electrical transport and specific heat measurements. The specific heat shows anomalies corresponding to antiferromagnetic ordering transition and crystalline field effect, but not to superconducting transition. Single-crystal neutron diffraction indicates that the antiferromagnetic structure is characterized by the (1/2, 1/2, 1/2) propagation vector. Temperature variation of the electrical resistivity reveals two parallel conducting channels of semiconducting and metallic character. In weak magnetic fields, the magnetoresistance exhibits weak antilocalization effect, while in strong fields and temperatures below 50 K it is large and negative. At temperatures below 7 K Shubnikov-de Haas oscillations with two frequencies appear in the resistivity. These oscillations have non-trivial Berry phase, which is a distinguished feature of Dirac fermions.

References in corpus (28)

• The electronic properties of graphene
• Topological Insulators
• Superconducting proximity effect and Majorana fermions at the surface of a topological insulator
• Electronic Structure of Pyrochlore Iridates: From Topological Dirac Metal to Mott Insulator
• Dirac semimetal in three dimensions
• Topological Insulator Materials
• Tunable Multifunctional Topological Insulators in Ternary Heusler Compounds
• A new platform for topological quantum phenomena : Topological Insulator states in thermoelectric Heusler-related ternary compounds
• Antiferromagnetic topological insulators
• Dirac Fermions in Solids - from High Tc cuprates and Graphene to Topological Insulators and Weyl Semimetals
• Quantum Oscillations from Surface Fermi-Arcs in Weyl and Dirac Semi-Metals
• Manifestation of Topological Protection in Transport Properties of Epitaxial Bi2Se3 Thin Films
• Phase analysis of quantum oscillations in graphite
• Superconductivity in the topological semimetal YPtBi
• Topological $R$PdBi half-Heusler semimetals: a new family of non-centrosymmetric magnetic superconductors
• Superconductivity in the noncentrosymmetric half-Heusler compound LuPtBi : A possible topological superconductor
• Weak Antilocalization Effect and Noncentrosymmetric Superconductivity in a Topologically Nontrivial Semimetal LuPdBi
• Large Linear Magnetoresistance and Shubnikov-de Hass Oscillations in Single Crystals of YPdBi Heusler Topological Insulators
• Shubnikov-de Haas oscillations, weak antilocalization effect and large linear magnetoresistance in the putative topological superconductor LuPdBi
• Superconductivity and magnetic order in the non-centrosymmetric Half Heusler compound ErPdBi
• Superconductivity in non-centrosymmetric YPtBi under pressure
• Magnetic and transport properties of rare-earth-based half-Heusler phases RPdBi: prospective systems for topological quantum phenomena
• Magnetic field tuned quantum criticality of heavy fermion system YbPtBi
• Magnetic structure of GdBiPt: A candidate antiferromagnetic topological insulator
• Transversal magnetoresistance in Weyl semimetals
• High pressure transport properties of the topological insulator Bi2Se3
• Magnetic and superconducting phase diagram of the half-Heusler topological semimetal HoPdBi
• Topological Effects on the Magnetoconductivity in Topological Insulators

Cited by in corpus (17)

• Superconductivity in half-Heusler compound TbPdBi
• Model Hamiltonian and Time Reversal Breaking Topological Phases of Anti-ferromagnetic Half-Heusler Materials
• Anomalous Hall effect and negative longitudinal magnetoresistance in half-Heusler topological semimetal candidates TbPtBi and HoPtBi
• Negative longitudinal magnetoresistance as a sign of a possible chiral magnetic anomaly in the half-Heusler antiferromagnet DyPdBi
• Weak antilocalization in a noncentrosymmetric CaAgBi single crystal
• MgPd${}_2$Sb -- the first Mg-based Heusler-type superconductor
• Two-channel conduction in YbPtBi
• Topological surface conduction in Kondo insulator YbB${}_{12}$
• Observation of Dirac state in half-Heusler material YPtBi
• Magnetotransport signatures of chiral magnetic anomaly in the half-Heusler phase ScPtBi
• Nodal S-wave Superconductivity in Antiferromagnetic Semimetals
• Anisotropic exchange and non-collinear antiferromagnets on a noncentrosymmetric fcc structure as in the half-Heuslers
• Magnetic phenomena in equiatomic ternary rare earth compounds
• Strong-coupling superconductivity of the Heusler-type compound ScAu2Al: Ab-initio studies
• Transverse and Longitudinal Magnetothermopower Promoted by Ambipolar Effect in Half-Heusler Topological Materials
• Anomalous magnetotransport in the single-crystalline half-Heusler antiferromagnet ErPdSb
• Magnetic and electrical transport properties of the single-crystalline half-Heusler antiferromagnet DyNiSb