Effect of annealing temperature on the magnetization behavior of LaFe0.5Cr0.5O3

Abstract

LaFe[Formula: see text]Cr[Formula: see text]O3 was synthesized using the sol–gel method and subsequently annealed at [Formula: see text]C and [Formula: see text]C. Magnetization curves and Mössbauer spectra were employed to evaluate the macroscopic magnetism of the samples at 300[Formula: see text]K. The results showed that coercivity increased with higher annealing temperatures. Notably, magnetic measurements of the LFCO-900 sample revealed an unusual trend in the M–T curve between 50[Formula: see text]K and 150[Formula: see text]K, likely due to annealing-induced changes in magnetic entropy. Annealing temperature significantly influences LFCO’s magnetic properties. Monte Carlo simulations modeled magnetization’s temperature dependence in disordered systems under varying magnetic field strengths, aligning with observations in LFCO-750. These insights are crucial for furthering understanding of perovskite materials’ physical properties and for enhancing the magnetic entropy effect in such systems, thereby increasing their practical application potential.