Enhanced electrical and magnetic properties of samarium substituted spinel ferrites

The present study aimed to verify the experimentally obtained results by exploring the several properties of the material (i.e. magnetic, structural, and direct current (DC)-electrical properties). Trivalent rare-earth element samarium (Sm³⁺)doped barium spinel ferrites BaSm_xFe_2−xO₄ for compositions with the following x values: 0, 0.025, 0.05, 0.075, and 0.1 were subjected to the sol-gel procedure for processing. All of the samples, according to X-ray diffraction (XRD) investigation, developed a structure with a single phase that is cubic. The structural parameters, including lattice constants, crystalline size (nm), densities (bulk and X-ray), and unit-cell volume, were observed. The semiconductor natureof the prepared materials was demonstrated by the use of two-probe tests to estimate DC resistivity (ρ_dc), Curie temperature (T_c). Ferromagnetic materials’ properties resemble remenance (M_r), coercivity (H_c), saturation magnetization (M_s), and changes that resulted from the insertion of Sm³⁺ was injected in the M-H condition (magnetization-applied field) loops are assigned to each individual nanoparticle. It’s been discovered that the evolution of the anisotropic constant is kind of analogous to those of the coercivity. The current synthesized barium ferrites have been confirmed to really be useful as in manufacturing of high-density magnetic storage applications.