Title: Structural and dielectric properties of LaFe[sub 1−x]Zn[sub x]O[sub 3](0≤x≤0.3)
Abstract:We have studied the structural and dielectric properties of nano-crystalline LaFe1−xZnxO3(0≤x≤0.3) perovskite samples. The samples were synthesized by sol-gel auto-combustion technique and show the or...We have studied the structural and dielectric properties of nano-crystalline LaFe1−xZnxO3(0≤x≤0.3) perovskite samples. The samples were synthesized by sol-gel auto-combustion technique and show the orthorhombic crystal structure at room temperature. Dielectric responses of studied system have been analyzed in the light of "universal dielectric response (UDR)"h model. The value of dielectric constant (ε′) is found to be hugely enhanced with Zn substitution. To verify the UDR behaviour, the log(ν) versus log(νε′) graphs have been plotted. We have found the best linear fit for the host (LaFeO3) sample in the whole frequency range and for the other samples the linear behaviour is observed at low frequency regions only.Read More