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Antiferromagnetic Order in the Half-Heusler Phase TbPdBi

100%

Pavlosiuk O., Kleinert M., Wiśniewski P., Kaczorowski D.

Acta Physica Polonica A

2018

vol. 133

issue 3

498-500

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 T_{N} ≈5.3 K. Neutron diffraction experiment confirmed the antiferromagnetic ordering and yielded the propagation vector k=(1/2,1/2,1/2). Remarkably, this k vector is in accord with the recently developed theory of antiferromagnetic topological insulators.

Giant Magnetoresistance and Shubnikov-de Haas Effect in LuSb

88%

Kleinert M., Pavlosiuk O., Swatek P., Kaczorowski D., Wiśniewski P.

Acta Physica Polonica A

2018

vol. 133

issue 3

538-540

Single-crystals of LuSb were investigated by means of electrical resistivity and magnetoresistance measurements. The compound was found to exhibit giant magnetoresistance exceeding 3000%, low-temperature resistivity plateau, and Shubnikov-de Haas oscillations. It was characterized as a semimetal with nearly balanced contributions of electron and hole carriers to the magnetotransport properties. The experimental findings, supported by the results of electronic structure calculations, proved that the magnetotransport in LuSb can be described in the scope of 3D multi-band Fermi surface model without topologically non-trivial electronic states.

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2 Acta Physica Polonica A

2 2018

2 Kaczorowski D.

2 Kleinert M.

2 Pavlosiuk O.

2 Wiśniewski P.

1 Swatek P.

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Antiferromagnetic Order in the Half-Heusler Phase TbPdBi

Giant Magnetoresistance and Shubnikov-de Haas Effect in LuSb