Topological $R$PdBi half-Heusler semimetals: a new family of non-centrosymmetric magnetic superconductors

Abstract

We report superconductivity and magnetism in a new family of topological semimetals, the ternary half Heusler compounds $R$PdBi ($R$ : rare earth). In this series, tuning of the rare earth $f$-electron component allows for simultaneous control of both lattice density via lanthanide contraction, as well as the strength of magnetic interaction via de Gennes scaling, allowing for a unique tuning of both the normal state band inversion strength, superconducting pairing and magnetically ordered ground states. Antiferromagnetism with ordering vector (0.5,0.5,0.5) occurs below a Neéel temperature that scales with de Gennes factor $dG$, while a superconducting transition is simultaneously linearly suppressed. With superconductivity appearing in a system with non-centrosymmetric crystallographic symmetry, the possibility of spin-triplet Cooper pairing with non-trivial topology analogous to that predicted for the normal state electronic structure provides a unique and rich opportunity to realize both predicted and new exotic excitations in topological materials.

14 pages, 8 figures

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Cited by in corpus (51)

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• Anomalous Hall effect and negative longitudinal magnetoresistance in half-Heusler topological semimetal candidates TbPtBi and HoPtBi
• Pairing from dynamically screened Coulomb repulsion in bismuth
• Perspective: strain and strain gradient engineering in membranes of quantum materials
• Dirac lines and loop at the Fermi level in the Time-Reversal Symmetry Breaking Superconductor LaNiGa${}_2$
• Observation of Dirac surface states in the noncentrosymmetric superconductor BiPd
• Tuning the Parity Mixing of Singlet-Septet Pairing in a Half-Heusler Superconductor
• Efficient spin current source using a half-Heusler alloy topological semimetal with Back-End-of-Line compatibility
• Band structure tuning of Heusler compounds revisited: Spin- and momentum-resolved electronic structure analysis of compounds with different band filling
• Instability of $j=3/2$ Bogoliubov Fermi-surfaces
• Anisotropic gapping of topological Weyl rings in the charge-density-wave superconductor InxTaSe2
• Topological Superconducting Vortex From Trivial Electronic Bands
• Magnetotransport signatures of chiral magnetic anomaly in the half-Heusler phase ScPtBi
• Tuning the topological character of half-Heusler systems: A comparative study on Y$T$Bi ($T$ = Pd, Pt)
• Campbell penetration depth in low carrier density superconductor YPtBi
• Superconductivity from Coulomb repulsion in three-dimensional quadratic band touching Luttinger semimetals
• Kohn-Luttinger Correction to Tc in a Phonon Superconductor
• Multipolar superconductivity in Luttinger semimetals
• The effect of interorbital scattering on superconductivity in doped Dirac materials
• Using Disorder to Identify Bogoliubov Fermi-Surface States
• Antiferromagnetic spin fluctuations and unconventional superconductivity in topological superconductor candidate YPtBi revealed by ${}^{195}$Pt-NMR
• Role of chemical disorder in tuning the Weyl points in vanadium doped Co${}_2$TiSn
• Intrinsic finite-energy Cooper pairing in $j=3/2$ superconductors
• Ferromagnetic Cr4PtGa17: A Novel Half-Heusler-Type Compound with a Breathing Pyrochlore Lattice
• Anisotropic exchange and non-collinear antiferromagnets on a noncentrosymmetric fcc structure as in the half-Heuslers
• Multiplicative topological semimetals
• Complex magnetic phases in polar tetragonal intermetallic NdCoGe${}_3$
• Long-lived non-equilibrium superconductivity in a non-centrosymmetric Rashba semiconductor
• Insulating Half-Heusler TmPdSb with Unusual Band Order and Metallic Surface States
• Unusual upper critical fields of the topological nodal-line semimetal candidate Sn${}_x$NbSe${}_{2-\delta }$
• Al${}_2$MnCu: A magnetically ordered member of the Heusler alloy family despite having a valence electron count of 24
• Spin Susceptibility of a J=3/2 Superconductor
• A Generative Approach to Joint Modeling of Quantitative and Qualitative Responses
• Odd-frequency pairing and time-reversal symmetry breaking for repulsive interactions
• Superconductivity in Bi based Bi2PdPt
• Identifying the fingerprints of topological states by tuning magnetoresistance in a semimetal: the case of topological half-Heusler Pt1-xAuxLuSb
• Neutron scattering off Weyl semimetals
• Helical Topological Superconducting Pairing at Finite Excitation Energies
• A Family of Lanthanide Noncentrosymmetric Superconductors La${}_4$$TX$ ($T$ = Ru, Rh, Ir; $X$ = Al, In)
• Electronic Structure and Thermoelectric Properties of Half-Heusler Alloys NiTZ
• Impurities in 3D quadratic band-touching Luttinger semimetals : Friedel and RKKY oscillations
• Structural and transport properties of 4f electron doped Y1-x(Dy)xPdBi topological semi-metallic thin films
• Orbital homology of p and t2g orbitals in models and materials
• Anomalous magnetotransport in the single-crystalline half-Heusler antiferromagnet ErPdSb
• Materials Screening for the Discovery of New Half-Heuslers: Machine Learning versus Ab Initio Methods
• The Effect of Repulsion on Superconductivity at Low Density
• Quantum Oscillations and Superconductivity in YPtBi Under Pressure
• Thermodynamic and electrical transport properties of the half-Heusler plumbide TbAuPb