Effect of copper substitution on the structure of La0.7Sr0.25Nd0.05Mn1-xCuxO3 (x = 0, 0.03, 0.05, and 0.07) manganites

The effect of copper substitution on the structure of La0.7S0.25Nd0.05Mn1-xCuxO3(x = 0, 0.03, 0.05, and 0.07) has been studied by using X-ray diffraction (XRD). The samples were successfully synthesized by using citrate-nitrate sol-gel method. Rietveld refinement analysis showed that all samples cry...

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Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 763; no. 1
Main Authors Razaq, D S, Munazat, D R, Soegijono, B, Kurniawan, B, Budiawanti, S, Nanto, D
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.02.2020
Subjects
bond angle
Copper
Crystal structure
Crystallization
Crystals
LSNMCuO
Manganese ions
sol-gel method
Sol-gel processes
Substitutes
X-ray fluorescence
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Summary:The effect of copper substitution on the structure of La0.7S0.25Nd0.05Mn1-xCuxO3(x = 0, 0.03, 0.05, and 0.07) has been studied by using X-ray diffraction (XRD). The samples were successfully synthesized by using citrate-nitrate sol-gel method. Rietveld refinement analysis showed that all samples crystallized in rhombohedral system with R3¯c space group without any detectable trace of impurities. Further analysis on the crystal structural of the samples revealed that copper substitution decreases the average Mn-O-Mn bond angle (<Mn-O-Mn>) and increases the Mn-O bond length (d<Mn-O<). Scherrer equation showed the samples are in nanocrystalline. X-ray fluorescence (XRF) results indicate that copper has successfully substituted the manganese ion.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/763/1/012074