Resistivity and thermoelectric power measurements on CeFe$_2$ and its pseudobinaries

Details Resistivity and thermoelectric power measurements on CeFe$_2$ and its pseudobinaries Resistivity and thermoelectric power measurements on CeFe$_2$ and its pseudobinaries

2002-05-27

arxiv.org/abs/cond-mat/0205539v1

Physics

Condensed Matter

Strongly Correlated Electrons

13 pages, 5 figures

Scientific paper

Resistivity and thermoelectric power (TEP) measurements on CeFe$_2$ and two of its pseudo-binaries Ce(Fe, 5% Ir)$_2$ and Ce(Fe, 7% Ru)$_2$ between 78K and 275K are reported. The resistivity data are analysed in terms of contributions from scattering due to phonon, magnon, spin fluctuation and lattice defects, and also from interband scattering. Attempts are made to analyze the TEP data in terms of these resistivity components. Thermal hysteresis is observed in the temperature dependence of TEP in the Ir and Ru doped CeFe$_2$ samples around the ferromagnetic to antiferromagnetic transition, indicating the first order nature of this transition.

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