Thermodynamic and electrical transport properties of the half-Heusler plumbide TbAuPb

Abstract

Structural, thermodynamic and electrical transport properties of TbAuPb were investigated on single crystals. The compound was found to crystallize with the cubic MgAgAs-type structure characteristic of half-Heusler materials. It orders antiferromagnetically at TN = 5 K and undergoes a transition into a different antiferromagnetic phase emerging in high magnetic fields. Electrical transport in TbAuPb exhibits a multiband character, with a predominance of hole-like carriers. Angular magnetoresistance evolves systematically with applied magnetic field and changes its symmetry near the spin-reorientation transition, highlighting strong coupling between the charge transport and the magnetic order. The results of first-principles calculations indicate that TbAuPb is a band inverted semimetal in the non-magnetic state, which becomes topologically trivial in the field-induced ferromagnetic state.

9 Pages, 6 figures, 2 Pages supplementary information, Published in Physical Review Materials

References in corpus (12)

• Half-Heusler Compounds as a New Class of Three-Dimensional Topological Insulators
• Topological $R$PdBi half-Heusler semimetals: a new family of non-centrosymmetric magnetic superconductors
• Topological Surface States and Dirac point tuning in ternary Bi2Te2Se class of topological insulators
• Half-Heusler Topological Insulators: A First-Principle Study with the Tran-Blaha Modified Becke-Johnson Density Functional
• Metallic surface electronic state in half-Heusler compounds RPtBi (R = Lu, Dy, Gd)
• Half-Heusler topological insulators
• Magnetic field tuned quantum criticality of heavy fermion system YbPtBi
• Exceptionally large anomalous Hall effect due to anticrossing of spin-split bands in the antiferromagnetic half-Heusler compound TbPtBi
• Field-induced magnetic phase transitions and the resultant giant anomalous Hall effect in antiferromagnetic half-Heusler DyPtBi
• Tuning the Parity Mixing of Singlet-Septet Pairing in a Half-Heusler Superconductor
• Metamagnetic multiband Hall effect in Ising antiferromagnet ErGa${}_2$
• Transverse and Longitudinal Magnetothermopower Promoted by Ambipolar Effect in Half-Heusler Topological Materials