Structure refinement, cation site location, spectral and elastic properties of Zn2+ substituted NiFe2O4

摘要: Abstract Ni–Zn ferrite samples with the chemical formula Ni 1− x Zn Fe 2 O 4 (  = 0.0 to  = 1.0) were prepared by solid state reaction. Using Rietveld refinement discrepancy factor, interatomic distance, atomic coordinates, cation occupancy and degree of inversion have been determined. SEM images revealed that 2+ promotes grain growth in NiFe . The IR spectra show two absorption bands wave number range 400–600 cm −1 data used calculate elastic moduli such as stiffness constant C 11 , 12 ), longitudinal velocity V l shear S mean m Young modulus E bulk K rigidity G Poisson ratio σ ) Debye temperature θ ). values decreases increasing composition AC susceptibility measurement confirms decrease Curie content. Dielectric loss e ″) increases