Abstract
We have investigated temperature relationships of thermal diffusivity, specific heat as well as heat conductivity of La, Ce, Nd and Sm at temperature of 700–800 K and up to temperatures close to melting points with the method of plant temperature waves using modulated laser radiation. We have also isolated the electron contribution thermal conductivity and shown that this contribution is responsible for the positive temperature coefficient of the total thermal conductivity. In this article we also discuss peculiarities of light rare earth metal thermal and kinetic properties near structural transition points and we have shown that the anomaly character is dependent upon modulation frequency of the heat flux.
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