Effect of TM (TM = Fe, Ni) doping on the structure and morphology of La0.825Sr0.175Mn0.9(Fe1-xNix)0.1O3perovskite manganite

D. S. Pratama, B. Kurniawan, D. R. Munazat

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

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.

Original languageEnglish
Title of host publicationProceedings of the 6th International Symposium on Current Progress in Mathematics and Sciences 2020, ISCPMS 2020
EditorsTribidasari A. Ivandini, David G. Churchill, Youngil Lee, Yatimah Binti Alias, Chris Margules
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735441132
DOIs
Publication statusPublished - 23 Jul 2021
Event6th International Symposium on Current Progress in Mathematics and Sciences 2020, ISCPMS 2020 - Depok, Indonesia
Duration: 27 Oct 202028 Oct 2020

Publication series

NameAIP Conference Proceedings
Volume2374
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference6th International Symposium on Current Progress in Mathematics and Sciences 2020, ISCPMS 2020
Country/TerritoryIndonesia
CityDepok
Period27/10/2028/10/20

Keywords

  • orthorombic structure
  • Perovskite manganite
  • rhombohedral structure

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