affiliation not provided to SSRN
A. Multivalence cations, B. Jahn-Teller distortion, C. X-ray photoelectron spectroscopy, D. X-ray absorption spectroscopy, E. O K-edge.
A2BB′O6, Room-Temperature Ferrimagnetic, Sr2FeTiO6 (SFTO), Jhan-Teller (JT) distortion
Mixed-spinel-ferrites, NiFe2O4(NFO), Ni0.5Co0.5Fe2O4(NCFO), Electric-Modulus, Cole-Cole analysis.