Structural, optical, electrical, dielectric, molecular vibrational and magnetic properties of La3+ doped Mg–Cd–Cu ferrites prepared by Co-precipitation technique

Ferrites are among the most frequently investigated materials mainly due to interesting and practically different properties. Therefore, easily cost-effective lanthanum doped Mg0.5Cd0.25Cu0.25Fe2-xLaxO4 (x = 0.0, 0.0125, 0.025, 0.0375 0.05) ferrites were synthesized by a co-precipitation route, comprehensive characterisation of their structural, optical, electric, dielectric, molecular vibrational, magnetic properties carried out. X-ray diffraction analysis confirmed formation cubic spinel structure. Variations in frequency bands also observed with amplification optical band gap energy (2.95 – 3.38 eV) La3+ ions insertion. The electric resistivity had opposite trends at low high temperatures increasing content. Curie temperature, activation energy, drift mobility determined have values consistent semiconducting behavior soft ferrites. saturation magnetization (MS) has maximum value 49.385 emu/g remanent (Mr) was 34.928 coercivity 661.4 Oe for concentration x 0.05. minimum dielectric loss 0.025. Moreover, (?) 7.95 × 104 ? cm calculated range Mg–Cd–Cu detected microwave (3.36 10.80 GHz), suggesting potential application longitudinal recording media absorbance.