Thermoelectric Properties of Heavy Fermion Compound Ce₃Co₄Sn₁₃

• Authors: P. Witas , L. Kalinowski , J. Goraus , M. Fijałkowski , A. Ślebarski
• Languages of publication: EN

Abstracts

EN

The heavy fermion compound Ce₃Co₄Sn₁₃ was studied in terms of its thermoelectric properties. To enhance its figure of merit we milled the solid sample and then pressed to obtain a consistent granulated material. The main properties, such as the Seebeck coefficient, thermal conductivity and electronic resistivity were measured at low (< 300 K) temperatures for both, the solid and the granulated sample. Thermal conductivity was diminished and the Seebeck coefficient was slightly enhanced, while the resistivity of produced material was increased. We explain it by strong electron scattering on defects and grain boundaries present in the sample. The resulting figure of merit ZT was found to be enhanced almost across the whole measured T region.

Keywords

EN

71.27.+a; 72.15.Eb; 72.15.Jf

Discipline

• 72.15.Jf: Thermoelectric and thermomagnetic effects
• 71.27.+a: Strongly correlated electron systems; heavy fermions
• 72.15.Eb: Electrical and thermal conduction in crystalline metals and alloys

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 127
• Issue: 2
• Pages: 309-311

Dates

published

2015-02

Contributors

author

P. Witas

• Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland

author

L. Kalinowski

• Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland

author

J. Goraus

• Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland

author

M. Fijałkowski

• Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland

author

A. Ślebarski

• Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland

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Identifiers

DOI

10.12693/APhysPolA.127.309