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Polycrystalline PbTi(1−x)(Fe0.50V0.50)xO3 (0 ≤ x ≤ 0.12) ceramics have been prepared using a modified sol–gel route via conventional sintering method. Rietveld refinement of all samples XRD data are carried out with tetragonal P4mm space group. Structural analysis is revealed to decrease the tetragonality (c/a) from 1.064 (for x = 0) to 1.039 (for x = 0.12) with increasing composition. An electronic...
CeO2 has cubic fluorite structure which is modified due to oxygen content as well as external substituents. The oxidation state of Ce plays an important role in strain and related physical properties. Ce3+ being larger in size than the Ce4+ ion, one expects a change in band structure due to changes in bond length; substitution of Ce4+ by Co2+ in sol–gel prepared, homogeneous, single-phase Ce1−xCox...
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