Structural, optical, and dielectric studies of LaFe 1−x Mo x O 3 (x = 0.0, 0.5) perovskite materials

D. Triyono*, H. Laysandra, H. L. Liu


研究成果: 雜誌貢獻期刊論文同行評審

10 引文 斯高帕斯(Scopus)


The structural, optical, and dielectric properties of LaFe 1−x Mo x O 3 (x = 0.0, 0.5) synthesized by the sol–gel method were investigated by X-ray diffraction (XRD), Raman scattering, and impedance spectroscopy. XRD analysis revealed that the x = 0.5 compound is single-phase and orthorhombic, with space group Pbnm, similar to the parent x = 0.0 compound but with larger lattice parameters and/or a larger unit-cell volume. The Raman scattering spectra revealed local lattice distortions in the x = 0.5 compound and spin–phonon coupling related to the magnetic transition (Néel) temperature. The impedance data were well fitted with an R(R 1 -CPE 1 )//(R 2 -CPE 2 ) equivalent electrical circuit, demonstrating the contributions of both grains and grain boundaries. The temperature (300–500 K) and frequency (100 Hz–1 MHz) dependences of the dielectric properties showed that Mo substitution adversely affected the dielectric parameters.

頁(從 - 到)2512-2522
期刊Journal of Materials Science: Materials in Electronics
出版狀態已發佈 - 2019 二月 15

ASJC Scopus subject areas

  • 電子、光磁材料
  • 原子與分子物理與光學
  • 凝聚態物理學
  • 電氣與電子工程


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