CHARACTERIZATIONS AND SYNTHESIS OF MAGNETIC MATERIAL MNFEO3

• Main Author: Naufal Arrasyid, Ervin
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/55123
• Institution: Institut Teknologi Bandung

FeMnO3 is a weak ferromagnetic material confirmed to have magnetic properties at room temperature. This experiment aims to determine crystal anisotropic properties of FeMnO3, which by calculation we were looking for crystal anisotropic constant of this material. The synthesis of FeMnO3 undergone using the mechanical alloying method which utilizes Fe2O3 and MnO2 non-stoichiometric precursors. The sample would be sintered for 72 hours in 950 degrees of temperature for about thrice. Sample characterization was done using XRD, FTIR, SEM, and EDS to determine the created sample is already single-phased. Hysteresis curve of this sample is normalized using law of saturation approach and modeled using Stoner-Wohlfarth model, Akulov’s approximation and Zhang approxaimation. The resutlt shows that the sample has attained single phase and it is confirmed a weak ferromagnetic material where it coercive field has small values relative to its saturation field. This sample showed that it has relatively small anisotropic constant of 0.1.