Assessment of near Pr2/3Sr1/3MnO3 oxide in magnetic cooling

Depicting the roles of CuO secondary phase and heat treatment in driving the magnetic and magnetocaloric features of Pr2∕3Sr1∕3MnO3 manganite

“…The obtained results have unveiled the high performance of this material particularly when fully taking advantage of its MCE. Furthermore, even though the Pr 0.6 Sr 0.4 MnO 3 exhibits a relatively low magnetocaloric effect at practical fields of 1 T to 2 T, the coefficient of performance can be increased by a factor of two provided that magnetic forces are balanced in magnetocaloric devices [82].…”

Thermal Response of Magnetic Refrigerants: Combined Effect of Temperature Dependent Specific Heat and Thermal Conductivity

“…Each physical property used in MC models depends on parameters like temperature T and magnetic field H. In MCM numerical modelling, the use of these two dependencies in the literature presents itself considerably divergent. Recent models all use temperature dependent specific heat (C p (T)) domains, whether it has been calculated through Mean Field Theory (MFT) or obtained experimentally [21][22][23]. C p (T) is required to have a thermodynamic sound model [24].…”

“…This result may be approximated to actual values in some cases since Fujieda et al (2004) already had measured a 10% change in thermal conductivity across a 20 K window near room temperature for some MC materials [30], which can influence the time constant temperature change during the MCE [31]. Despite that, nowadays, predictive algorithms already can provide reliable and accurate MCM C p (T) input values [32], the same cannot be said for the material's k, which is still considered immutable [23,[33][34][35].…”