Microwave-Assisted Green Synthesis and Temperature-Dependent Dielectric Relaxation of Nominal MgFe₂₋ₓNiₓO₄ Spinel Ferrites Using Tinospora Cordifolia. Frontiers of Multidisciplinary Research, [S. l.], v. 1, n. 4, 2026. DOI: 10.65601/FoMR.2026.1.4.1. Disponível em: https://journal.srmist.edu.in/fomr/article/view/89. Acesso em: 5 nov. 2026.