I. K. Kamilov, A.G. Gamzatov, A. B. Batdalov, A. S. Mankevich, I. E. Korsakov, “Heat capacity and magnetocaloric properties of La$_{1-x}$K$_x$MnO$_3$ manganites”, Fizika Tverdogo Tela, 2010, Volume 52, Issue 4,Pages 735

This article is cited in 20 papers

Lattice dynamics and phase transitions

Heat capacity and magnetocaloric properties of La$_{1-x}$K$_x$MnO$_3$ manganites

I. K. Kamilov^a, A.G. Gamzatov^a, A. B. Batdalov^a, A. S. Mankevich^b, I. E. Korsakov^b

^a Daghestan Institute of Physics after Amirkhanov
^b Lomonosov Moscow State University

Abstract: The magnetocaloric effect and the heat capacity of La$_{1-x}$K$_x$MnO$_3$ ceramic samples have been studied at temperatures in the range 77–350 K and in magnetic fields of up to 27 kOe. The technique for preparing the samples has been described. The heat capacity anomalies related to the ferromagnetic-paramagnetic magnetic phase transition have been revealed and interpreted. It has been demonstrated that the change in the magnetic entropy $\Delta S$ calculated from the data on the heat capacity $C_p$ and direct measurements of the magnetocaloric effect $\Delta T$ reaches values that are of practical interest.