We use room-temperature impedance spectroscopy to investigate LaFe1-xMnxO3 (x = 0.05, 0.1, 0.15 and 0.2) perovskite-type oxides. The samples were synthesized using the sol-gel method followed by a sintering process to form bulk samples. The microstructural and chemical composition were analyzed using scanning electron microscopy and x-ray fluorescence, with the results indicating a grain size of 373-305 nm and an atomic composition compatible with the chemical formula LaFe1-xMnxO3. Applying impedance spectroscopy to LaFe1-xMnxO3 at room temperature reveals a decreasing impedance and relaxation time with increasing Mn content. The dielectric spectra show a increasing dielectric constant with increasing of Mn content.
|Journal||IOP Conference Series: Materials Science and Engineering|
|Publication status||Published - 22 Feb 2019|
|Event||2nd International Conference on Current Progress in Functional Materials 2017, ISCPFM 2017 - Bali, Indonesia|
Duration: 8 Nov 2017 → 9 Nov 2017
- impedance spectroscopy
- sol-gel method