https://doi.org/10.1140/epjb/e2011-20159-1
Regular Article
Thermal transport in the intermetallic compound CeNi4Cr
Institute of Molecular Physics, PAS, Poznań, Poland
a e-mail: tomtol@ifmpan.poznan.pl
Received:
4
March
2011
Received in final form:
12
September
2011
Published online:
10
November
2011
Electrical resistivity, thermopower (TEP), thermal conductivity and the thermoelectric figure of merit are studied for the CeNi4Cr compound, which has been previously suggested to be a fluctuating valence system with a tendency to the increase of the effective mass at low temperatures. The analysis of the thermoelectric properties confirms such a possibility and provides characteristic parameters like the Debye temperature, Fermi energy and the position of the f band. Both the thermopower and the magnetic part of the electrical resistivity could be analyzed within a similar model assuming a narrow f-band of the Lorentzian form near the Fermi energy. The thermal conductivity shows that the phonon contribution exceeds the electronic one below 220 K.
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag, 2011