Unveiling the characteristics of MgAl0.5Fe1.5O4 spinel ferrite: A study of structural, optical, and dielectric properties

• DOI: 10.1016/j.chphi.2024.100674
• Publication Date: 2024-07-06T17:00:50Z
• Authors: Sachin Verma; Abhishek Maurya; Harish Verma; Rajeev Singh; Biswanath Bhoi
• Keywords: Dielectric loss; Lattice constant

Aluminium-doped magnesium ferrite (MAFO) has garnered significant interest due to its recently observed low microwave loss properties, making it invaluable for applications at high-frequency operations, including fields like spintronics and magnonics. This study delves into the optical dielectric properties of MgAl0.5Fe1.5O4 synthesized via a conventional solid-state method followed by sintering 1350 °C 6 hrs. The X-ray diffraction analysis confirmed formation pure, single-phase MAFO spinel with lattice constant 8.313 Å. Williamson–Hall (W-H) was employed determine crystallite size strain from data, resulting in values 115.4 nm 9.37 × 10–4, respectively. UV–visible spectroscopy used revealing band gap 2.38 eV an average refractive index 2.09 investigated ferrite. capacitance, (ε), loss, ac conductivity, complex impedance, modulus sample were studied as function frequency various temperatures. comprehensive sheds light on previously undiscovered traits material's transport phenomena attributes, opening exciting active field research other physical properties.