TY - GEN
T1 - Effect of TM (TM = Fe, Ni) doping on the structure and morphology of La0.825Sr0.175Mn0.9(Fe1-xNix)0.1O3perovskite manganite
AU - Pratama, D. S.
AU - Kurniawan, B.
AU - Munazat, D. R.
N1 - Funding Information:
This work was financially supported by HIBAH PUTI No. PENG-1/UN2.RST/PPM.00.02/2020 from DRPM Universitas Indonesia 2020.
Publisher Copyright:
© 2021 Author(s).
PY - 2021/7/23
Y1 - 2021/7/23
N2 - Perovskite lanthanum mangantites La0.825Sr0.175Mn0.9(Fe1-xNix)0.1O3 with x = 0; 0.5; 1 has been successfully prepared with the sol-gel method. The XRD pattern shows that all samples are single phase with no impurities. The result of refinement measurements using the Rietveld method showed that the samples formed rhombohedral with group space R-3c. the addition of doping concentration (x) does not change the crystal structure, but only causes a decrease in lattice parameter, unit cell volume, increases Mn - O - Mn bond angle, and changes the length of Mn - O bond. The Goldschmidt tolerance factor (τ) is calculated to define the stability of the crystal structure. It was found a little uniqueness of the calculation that the τ obtained for all samples has a slight difference with the reference of the τ. In the reference of τ, for the value of τ < 0.96 the material will have an orthorombic structure. Whereas for 0.89 < τ < 1, the material will have a rhombohedral structure. However, in the material La0.825Sr0.175Mn0.9(Fe1-xNix)0.1O3 it was found that the structure formed was rhombohedral with τ = 0.847 - 0.876. This is because the material is in the orthorhombic and rhombohedral phase transition regions.
AB - Perovskite lanthanum mangantites La0.825Sr0.175Mn0.9(Fe1-xNix)0.1O3 with x = 0; 0.5; 1 has been successfully prepared with the sol-gel method. The XRD pattern shows that all samples are single phase with no impurities. The result of refinement measurements using the Rietveld method showed that the samples formed rhombohedral with group space R-3c. the addition of doping concentration (x) does not change the crystal structure, but only causes a decrease in lattice parameter, unit cell volume, increases Mn - O - Mn bond angle, and changes the length of Mn - O bond. The Goldschmidt tolerance factor (τ) is calculated to define the stability of the crystal structure. It was found a little uniqueness of the calculation that the τ obtained for all samples has a slight difference with the reference of the τ. In the reference of τ, for the value of τ < 0.96 the material will have an orthorombic structure. Whereas for 0.89 < τ < 1, the material will have a rhombohedral structure. However, in the material La0.825Sr0.175Mn0.9(Fe1-xNix)0.1O3 it was found that the structure formed was rhombohedral with τ = 0.847 - 0.876. This is because the material is in the orthorhombic and rhombohedral phase transition regions.
KW - orthorombic structure
KW - Perovskite manganite
KW - rhombohedral structure
UR - http://www.scopus.com/inward/record.url?scp=85112055854&partnerID=8YFLogxK
U2 - 10.1063/5.0061167
DO - 10.1063/5.0061167
M3 - Conference contribution
AN - SCOPUS:85112055854
T3 - AIP Conference Proceedings
BT - Proceedings of the 6th International Symposium on Current Progress in Mathematics and Sciences 2020, ISCPMS 2020
A2 - Ivandini, Tribidasari A.
A2 - Churchill, David G.
A2 - Lee, Youngil
A2 - Alias, Yatimah Binti
A2 - Margules, Chris
PB - American Institute of Physics Inc.
T2 - 6th International Symposium on Current Progress in Mathematics and Sciences 2020, ISCPMS 2020
Y2 - 27 October 2020 through 28 October 2020
ER -