TY - JOUR
T1 - Structural, optical, and dielectric studies of LaFe 1−x Mo x O 3 (x = 0.0, 0.5) perovskite materials
AU - Triyono, D.
AU - Laysandra, H.
AU - Liu, H. L.
N1 - Funding Information:
Acknowledgements H.L.L. thanks financial support from the Ministry of Science and Technology of Republic of China under Grants No. MOST 105-2112-M-003-013-MY3. D Triyono thanks financial support from the Ministry of Technology Research and Higher Education of Republic of Indonesia under Grants No. 537/UN2.R3.1/ HKP05.00/2018, 2nd year.
Funding Information:
H.L.L. thanks financial support from the Ministry of Science and Technology of Republic of China under Grants No. MOST 105-2112-M-003-013-MY3. D Triyono thanks financial support from the Ministry of Technology Research and Higher Education of Republic of Indonesia under Grants No. 537/UN2.R3.1/HKP05.00/2018, 2nd year.
Publisher Copyright:
© 2018, Springer Science+Business Media, LLC, part of Springer Nature.
PY - 2019/2/15
Y1 - 2019/2/15
N2 - 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.
AB - 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.
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U2 - 10.1007/s10854-018-0525-8
DO - 10.1007/s10854-018-0525-8
M3 - Article
AN - SCOPUS:85058368543
SN - 0957-4522
VL - 30
SP - 2512
EP - 2522
JO - Journal of Materials Science: Materials in Electronics
JF - Journal of Materials Science: Materials in Electronics
IS - 3
ER -