Structural, vibrational and dielectric study of Ni doped spinel Co ferrites: Co1−xNixFe2O4 (x=0.0, 0.5, 1.0)
作者： Ashwini Kumar , Poorva Sharma , Dinesh Varshney
DOI: 10.1016/J.CERAMINT.2014.04.140
关键词: Spinel 、 X-ray crystallography 、 Crystal structure 、 Materials science 、 Ferrite (magnet) 、 Dissipation factor 、 Dielectric 、 Mineralogy 、 Raman spectroscopy 、 Rietveld refinement 、 Analytical chemistry
摘要: Abstract Bulk samples of spinel ferrites with the compositional formula, Co 1− x Ni Fe 2 O 4 ( =0.0, 0.5, 1.0) were synthesized by a solid-state reaction route to discuss doping effect on structural, vibrational and dielectric properties. The crystal structure cell parameters refined Rietveld analysis, infers that ceramics crystallized in single-phase cubic Fd -3 m space group. variation substitution confirmed partial 3+ into CoFe structure. A blue shift doped ferrite has been observed as compared parent from Raman scattering measurements. constant e ′) loss tangent (tan δ ) have investigated function composition frequency range 10 Hz–1 MHz. Porous are useful for microelectronics lower value constant.
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