Abstract
Solution-based chemical method was used to prepare the LiNi 3/5Fe 1/5Cu 1/5VO 4 ceramics. Its structural and dielectric properties were investigated. X-ray diffraction analysis shows an orthorhombic unit cell structure of the compound with lattice parameters a =9.6329 (23) Å, b=6.8527 (23) Å and c=5.4667 (23) Å. Frequency dependence of dielectric constant ( ε r) at various temperatures exhibits a dispersive behavior at low frequencies. Temperature dependence of ε r at various frequencies indicates the dielectric anomalies in ε r. Frequency dependence of tangent loss at various temperatures indicates the presence of dielectric relaxation in the material. The variation of relaxation time as a function of temperature follows the Vogel–Fulcher law.
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