Abstract
This letter presents a theoretical work on magnetocaloric properties of two series of double perovskites compounds La2FeMn1-xCuxO6 and Sr2RuMn1-xFexO6 with four different concentrations (x = 0, 0.1, 0.2 and 0.3) synthesized by solid state method. The value of the magnetocaloric effect (MCE) of both the series has been predicted by applying a phenomenological model on temperature variation magnetization data of the compounds. Along with the maximum entropy change (−ΔSm)max, specific heat and relative cooling power (RCP) were also calculated using the model. Interestingly, the simulated MCE of Fe doped Sr2RuMnO6 (Sr2RuMn1-xFexO6) showed the coexistence of direct and inverse MCE.
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