Study of LaFe1-xMnxO3 (x = 0.05, 0.1, 0.15, 0.2) perovskite materials by impedance spectroscopy

A. W. Anugrah, D. Triyono, H. Laysandra

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1 Citation (Scopus)

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.

Original languageEnglish
Article number012033
JournalIOP Conference Series: Materials Science and Engineering
Volume496
Issue number1
DOIs
Publication statusPublished - 22 Feb 2019
Event2nd International Conference on Current Progress in Functional Materials 2017, ISCPFM 2017 - Bali, Indonesia
Duration: 8 Nov 20179 Nov 2017

Keywords

  • impedance spectroscopy
  • LaFeMnO
  • sol-gel method

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