Fermi surface topology and magnetotransport in semimetallic LuSb

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作者：
Orest Pavlosiuk
Maja Kleinert
Przemysław Swatek
Dariusz Kaczorowski
Piotr Wiśniewski
机构：
[1] Institute of Low Temperature and Structure Research,Division of Materials Science and Engineering
[2] Polish Academy of Sciences,undefined
[3] P.Nr 1410,undefined
[4] Ames Laboratory,undefined
来源：
Scientific Reports | / 7卷
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摘要：
Several rare-earth monopnictides were shown to exhibit extreme magnetoresistance and field-induced low-temperature plateau of electrical resistivity. These features are also hallmarks of topological semimetals, thus the family is intensively explored with respect to magneto-transport properties and possible hosting Dirac fermion states. We report a comprehensive investigation of Fermi surface and electrical transport properties of LuSb, another representative of this family. At low temperatures, the magnetoresistance of LuSb was found to exceed 3000% without saturation in fields up to 9 T. Analysis of the Hall effect and the Shubnikov–de Haas oscillations revealed that the Fermi surface of this compound consists of several pockets originating from fairly compensated multi-band electronic structure, in full accordance with our first-principles calculations. Observed magnetotransport properties of LuSb can be attributed to the topology of three-dimensional Fermi surface and a compensation of electron and hole contributions.
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