ИСТИНА

Adiabatic temperature change, magnetization, heat capacity and thermal conductivity coefficient of a set of commercial purity heavy rare earth metals have been measured. The temperature and magnetic field dependences of the adiabatic temperature change and magnetization were measured by direct and induction methods, respectively. The temperature dependences of the heat capacity and thermal conductivity coefficient in constant magnetic field were measured by adiabatic calorimetry and steady-state methods. The obtained experimental results are compared with the literature data on high-purity heavy rare earths magnetothermal properties. The possible effect of the material purity on magnetic refrigerators parameters and ability to use the commercial purity materials in such devices are discussed.