Antiferromagnetic Order in the Half-Heusler Phase TbPdBi
O. Pavlosiuk, M. Kleinert, P. Wiśniewski and D. Kaczorowski
Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-422 Wrocław, Poland
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Single crystals of TbPdBi, a representative of the group of half-Heusler bismuthides, were studied by means of magnetic susceptibility, heat capacity, electrical resistivity, magnetostriction and thermal expansion measurements. The compound was characterized as an antiferromagnet with the Néel temperature TN ≈5.3 K. Neutron diffraction experiment confirmed the antiferromagnetic ordering and yielded the propagation vector k=(½,½,½). Remarkably, this k vector is in accord with the recently developed theory of antiferromagnetic topological insulators.

DOI: 10.12693/APhysPolA.133.498
PACS numbers: 75.50.Ee, 75.80.+q, 71.55.Ak, 72.15.Eb