The optical and high-pressure raman scattering study of La(Fe,Mo)0.5O3ceramics

D. Triyono, H. Laysandra, R. A. Rafsanjani

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This study was focused on the optical-vibrational analysis and high-pressure Raman-scattering spectroscopy of La(Fe,Mo)0.5O3 ceramics at room temperature. This material was fabricated by using the sol-gel method. The element composition was checked by X-ray Fluorescence confirming the atomic ratio of La, Fe and Mo. Fourier Transform Infrared spectroscopy confirmed the (Fe/Mo -O) bonding vibration which is typical perovskite structure. The band gap energy investigated by UV-Vis spectra was found to be 2.03 eV. At room temperature, the Raman scattering spectra under high pressure was characterized by the Raman-scattering spectrum in the range of 0.90 to 16.7 GPa. The high-pressure Raman scattering confirmed the structural transition after the pressure surpasses 7.0 GPa. From this phenomena, it well indicates the lattice structure stability is still preserved under 7.0 GPa.

Original languageEnglish
Article number012021
JournalIOP Conference Series: Materials Science and Engineering
Issue number1
Publication statusPublished - 2020
Event4th International Symposium on Current Progress in Functional Materials, ISCPFM 2019 - Bali, Indonesia
Duration: 6 Nov 20197 Nov 2019

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