Study of LaFe1−x Mn x O3 (x = 0.05, 0.1, 0.15, 0.2) perovskite materials by impedance spectroscopy

Aditya Wahyu Anugrah; Djoko Triyono; H. Laysandra

doi:10.1088/1757-899x/496/1/012033

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Study of LaFe_1−xMn_xO₃ (x = 0.05, 0.1, 0.15, 0.2) perovskite materials by impedance spectroscopy

Aditya Wahyu Anugrah Djoko Triyono H. Laysandra

Year: 2019 Journal: IOP Conference Series Materials Science and Engineering Vol: 496 Pages: 012033-012033 Publisher: IOP Publishing

DOI: 10.1088/1757-899x/496/1/012033

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Abstract

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.

Keywords:

Perovskite (structure) Crystallography Materials science X-ray crystallography Physics Chemistry Diffraction Optics

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Multiferroics and related materials

Physical Sciences → Materials Science → Electronic, Optical and Magnetic Materials

Dielectric properties of ceramics

Physical Sciences → Materials Science → Materials Chemistry

Magnetic and transport properties of perovskites and related materials

Physical Sciences → Materials Science → Electronic, Optical and Magnetic Materials

Study of LaFe_1−xMn_xO₃ (x = 0.05, 0.1, 0.15, 0.2) perovskite materials by impedance spectroscopy

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