LAUSR

Abstract The results of investigation of specific heat, thermal diffusion, thermal conductivity, and magnetocaloric effect in manganites Pr 0 . 6 Sr 0 . 4 Mn 1− x Fe x O 3 (x = 0 and 0.1) in the temperature range 80–350 K and in magnetic fields of 0 and 18 kOe are presented. When the atoms of Mn are replaced by Fe (x = 0.1) atoms, T C shifts toward low temperatures at about 167 K, while the MCE varies insignificantly with ΔS m  = 2.05 J/kg K and 2.31 J/kg K for x = 0 and 0.10, respectively, which implies the possibility of regulating the area with a maximum MCE. The phonon mechanism of heat transfer is dominant in the samples studied.