R&D: Investigation Effect of Cr3+ Substituted on Enhanced Dielectric and Magnetic Properties of co-cu Nano Ferrites for High-Density Storage Applications

Applied Physics A has published an article written by B. Rupa Venkateswara Rao, Department of Physics, V.R. Siddhartha Engineering College (A), Vijayawada, 520007, India, P. S. V. Shanmukhi, Department of Physics, Aditya College of Engineering and Technology, Surampalem, India, Tulu Wegayehu Mammo, Department of Physics, CNCS, Aksum University, Axum, Tigray, Ethiopia, D. Kothandan, Department of Physics, School of Technology, The Apollo University, Chittoor, Andhra Pradesh, 517127, India, Tewodros Aregai, Tadesse Desta, Department of Physics, CNCS, Aksum University, Axum, Tigray, Ethiopia, Mebrahtom Kahsay, Department of Physics, CNCS, Aksum University, Axum, Tigray, Ethiopia, Gereziher Hagos, Department of Physics, CNCS, Aksum University, Axum, Tigray, Ethiopia, N. Murali, Department of Engineering Physics, AUCE (A), Andhra University, Visakhapatnam, India, and Faculty of Allied Health Sciences, Chettinad Hospital Research Institute, Chettinad Academy of Research and Education, Kelambakkam, Tamil Nadu, 603103, India, Khalid Mujasam Batoo, King Abdullah Institute For Nanotechnology, King Saud University, P.O. Box-2455, Riyadh, 11451, Saudi Arabia, and Ahmed Ahmed Ibrahim, Department of Physics and Astronomy, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia.

Abstract: “Nano-ferrite materials with chemical compositions Co_0.3Cu_0.7Fe_2−xCr_xO₄ (x = 0.0, 0.05, 0.1, 0.15, 0.2, and 0.25) were synthesized through the wet chemical method, and analytical characterizations of their structural, magnetic, and dielectric properties were conducted. The structural formation was confirmed through powder X-ray (XRD) measurements, further affirmed by Fourier transform infrared spectroscopy (FTIR). Microstructural and morphological properties were investigated using FESEM and HRTEM scanning, revealing grains in the nano-scale range. Room temperature vibrating sample magnetometer (VSM) analysis provided magnetic information on the materials, presenting various values of magnetic parameters. Importantly, dielectric properties were examined using an LCR meter, revealing the dielectric nature of the synthesized materials and showing variations in dielectric parameters corresponding to changes in the dopant concentration. These prepared ferrite qualities suggest they could be used in high-density data storage systems, memory, and magnetic recording devices.“