Enhanced Structural, Dielectric, and Magnetic Properties of Mn-Yb-doped Y-type Hexaferrites

Abstract

Abstract This study aimed to determine the effect of Mn2+ and Yb3+ ions substitution on the structural, dielectric, morphological, and magnetic properties of CaBaCo2 − xMnxYbyFe12−yO22 where x = 0.00-0.1 and y = 0.00-0.01 Y-type hexagonal ferrites prepared by sol-gel auto combustion. For 6 hours, samples were calcined at 1050 degrees Celsius. X-ray diffraction (XRD) analysis was used to study the formation phase of Y-type hexaferrites. The calculated structural auxiliary parameters, such as lattice constants (a and c), cell volume (Vcell), X-ray density (dx), bulk density (db), and porosity (P), were found to be within the following ranges: a = 5.891 to 5.9Å, c = .43.466 to 43.543Å, Vcell 1310.53 to 1312.26Å3, dx = 5.01 to 5.05(g/cm− 1) db = 2.622 to 3.032 (g/cm− 1)and P = 39.969 to 47.665%. The location of the ions, including their respective bonds, inside the structure of the lattice matrix, was revealed by Fourier-transform infrared spectroscopy (FTIR). SEM pictures confirmed the plate-like shape of the particles, confirming the XRD findings. In the dielectric analysis, the typical dielectric response of ferrites was observed. Grain contribution is low when compared to grain boundaries contribution The generated Y-type hexaferrites samples' multidomain magnetic nature resulted in domain wall displacement, which affects the coercivity values. A vibrating sample magnetometer was used to investigate magnetic characteristics (VSM). The saturation magnetization (Ms), Retentivity (Mr), and coercivity (Hc) of the material were found to be 4.11 to 2.21 emu/g, 2.33 to 1.22emu/g, and 1776.78 to 2283,51Oe, respectively. These powders can be used as pre-eminent contender materials for perpendicular recording media (PMR) applications. Corresponding Author’s E-mail: hmkhan@iub.edu.pk