Structural and morphological la0.85-xbaxna0.15mno3 (x = 0, 0.05, 0.10, and 0.15) perovskite manganite

Ikhwan Nur Rahman, Budhy Kurniawan, Dhawud Sabilur Razaq, Arief Sudarmadji, Dicky Rezky Munazat

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

Abstract

Bulk polycrystalline samples La0.85-xBaxNa0.15MnO3 (x = 0, 0.05, 0.10 and 0.15) manganites were synthesized by the sol-gel route. The effect of Barium (Ba) existence on the structural and morphological was investigated by X-ray diffraction (XRD) and Scanning Electron Microscope (SEM). The structural parameters were obtained using Rietveld refinement of the XRD pattern. It was revealed the structures of compounds have rhombohedral with R-3c space group without any impurities phase. Furthermore, several changes are found to exist due to Ba substitution such as the lattice parameter, unit cells volume, average crystallite size, average Mn-O bond length (<Mn – O>) and average Mn-O-Mn bond angle (<Mn – O – Mn>). The changes in <Mn – O> and <Mn – O – Mn> due to Ba substitution, affects the double exchange interaction of the samples. SEM images reveal the existence of Ba also affects the morphology of the studied samples, which consisted of polygonal grains with homogeneous chemical composition.

Original languageEnglish
Title of host publicationPhysics Symposium
Subtitle of host publicationKey Research in Materials Science
EditorsAyi Bahtiar, Togar Saragi, Sahrul Hidayat, Lusi Safriani
PublisherTrans Tech Publications Ltd
Pages95-100
Number of pages6
ISBN (Print)9783035716979
DOIs
Publication statusPublished - 2020
Event4th Padjadjaran International Physics Symposium, PIPS 2019 - Bandung, Indonesia
Duration: 13 Nov 201914 Nov 2019

Publication series

NameKey Engineering Materials
Volume860 KEM
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Conference

Conference4th Padjadjaran International Physics Symposium, PIPS 2019
Country/TerritoryIndonesia
CityBandung
Period13/11/1914/11/19

Keywords

  • Crystal structure
  • LaBaBaMnO
  • Morphology
  • Perovskite manganite

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