Magnetic Order and SdH Effect in Half-Heusler Phase ErPdBi

• Authors: O. Pavlosiuk , K. Filar , P. Wiśniewski , D. Kaczorowski
• Languages of publication: EN

Abstracts

EN

Single crystals of ErPdBi were grown from Bi-flux. The crystal structure of MgAgAs-type was confirmed using X-ray diffraction. Magnetization, magnetic susceptibility, electrical resistance and heat capacity measurements revealed an antiferromagnetic phase transition at T_{N} = 1.2 K. At high temperatures, the electrical resistance has a semiconducting-like character (dR/dT < 0 ). The resistance starts decreasing with decreasing T below 15 K and shows a very sharp drop below T_{N} but remains finite down to 0.4 K. Hence, no obvious evidence of superconductivity was found in the electrical transport data. On the other hand, the real part of AC magnetic susceptibility is negative below T_{C} = 1.6 K and its imaginary component has a clear maximum at this temperature that might be associated with the onset of superconducting state. The electrical resistance revealed Shubnikov-de Haas oscillations in magnetic fields 8-33 T. Their amplitude decreases with increasing T and disappears above 10 K. Cyclotron mass determined from this dependence is 0.21 m_{e}.

Keywords

EN

74.10.+v; 75.40.Cx; 71.18.+y; 71.20.Eh; 72.15.Gd

Discipline

• 71.20.Eh: Rare earth metals and alloys
• 74.10.+v: Occurrence, potential candidates
• 71.18.+y: Fermi surface: calculations and measurements; effective mass, g factor
• 75.40.Cx: Static properties (order parameter, static susceptibility, heat capacities, critical exponents, etc.)
• 72.15.Gd: Galvanomagnetic and other magnetotransport effects(see also 75.47.-m Magnetotransport phenomena; materials for magnetotransport)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 127
• Issue: 2
• Pages: 656-658

Dates

published

2015-02

Contributors

author

O. Pavlosiuk

• Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P. Nr. 1410, 50-950 Wrocław, Poland

author

K. Filar

• International Laboratory of High Magnetic Fields and Low Temperatures, Gajowicka 95, 53-421 Wrocław, Poland

author

P. Wiśniewski

• Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P. Nr. 1410, 50-950 Wrocław, Poland

author

D. Kaczorowski

• Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P. Nr. 1410, 50-950 Wrocław, Poland

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Identifiers

DOI

10.12693/APhysPolA.127.656