Open AccessEffect of copper substitution on the structure of La0.7Sr0.25Nd0.05Mn1-xCuxO3 (x = 0, 0.03, 0.05, and 0.07) manganites
Author(s) -
Dhawud Sabilur Razaq,
Dicky Rezky Munazat,
Bambang Soegijono,
Budhy Kurniawan,
Sri Budiawanti,
Dwi Nanto
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/763/1/012074
Subject(s) - rietveld refinement , crystallography , copper , materials science , crystal structure , fluorapatite , analytical chemistry (journal) , manganese , chemistry , mineralogy , apatite , metallurgy , chromatography
The effect of copper substitution on the structure of La 0.7 S 0.25 Nd 0.05 Mn 1-x Cu x O 3 (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 R 3 ¯ 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 ( ) 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.