Experimental_XRD_manganite_Characterisation_WP2_TSNUK

This dataset was generated as part of APPROACH project activities (specifically Task 2.5 of WP2), to design new functional nanomaterials with specified parameters for various fields of science and technology. Manganite perovskites’ physical and chemical properties strongly depend on their structure, morphology, type and concentration of ions, as well as particle size. However, knowledge of the influence of the internal irreversible (structural-size effect and aging time of the sample t) and external reversible (hydrostatic P) pressures on the functional properties of Mn-containing perovskites from both fundamental and applied points of view is currently practically lacking. Therefore, realizing the importance and necessity of knowing how the functional properties of the Mn-containing perovskite nanoparticles depend on the deeply interrelated structural and size effect tann, time t, and pressure P parameters, we have tried to pull back the curtain and shed light on that. We aim to prepare the La0.8-xCdxNa0.2MnO3 (x = 0 and 0.05) nanoparticles under different temperatures tann = 500-900 °C and additionally the La0.7A0.2Mn1.1O3 (A = Na+, Ag+, K+) nanoparticles upon the tann = 900 °C and thoroughly study their structure, morphology, particle size, phase transition temperatures, and magnetocaloric effect (MCE) before and after 3 years and under high pressure as well. It has allowed us to establish the structure-functional relationships of Mn-containing perovskite nanoparticles modulated by doping, annealing temperature tann, time t, and external high hydrostatic pressure P, which provides the relevance, significance, and worth of this work.