Effect of Annealing Temperature on the Magnetization Behavior of LaFe0.5Cr0.5O3

Abstract

Abstract LaFe0.5Cr0.5O3 was prepared by sol-gel method, and the obtained samples were annealed at 750°C and 900°C. The magnetic hysteresis curves illustrated that the coercivity of the samples increased with higher annealing temperatures. Magnetic tests revealed anomalous behavior in the M-T curve of LFCO-900 within the temperature range of 50K-150K, which can be attributed to changes in magnetic entropy induced by annealing. The annealing temperature has a significant impact on the magnetic properties of LFCO. Monte Carlo simulation was employed to simulate the dependence of the magnetization on the temperature in disordered systems under weak and strong fields, and the results were consistent with the phenomena of LFCO-750. These findings provide important reference values for in-depth studies to understand the physical properties of perovskite materials, and they contribute to the optimization of the magnetic entropy effect in perovskite systems, thus enhancing their application value.