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Structural Elucidation and Magnetical Properties of La0.5Ca0.5MnO3 Powders and Pellets  

Jung, Miewon (Department of Chemistry, Sungshin Women's University)
Lee, Jiyun (Department of Chemistry, Sungshin Women's University)
Kim, Hyunjung (Department of Chemistry, Sungshin Women's University)
Publication Information
Korean Chemical Engineering Research / v.43, no.1, 2005 , pp. 71-75 More about this Journal
Abstract
$La_{0.5}Ca_{0.5}MnO_3$ colossal magnetoresistance (CMR) powders and pellets were synthesized by sol-gel process. The structural changes were investigated by FT-IR, CP/MAS $^{13}C$ solid state NMR spectroscopy and XRD. The particle characterization, microstructure of sintered samples, and cation composition of gel powders were studied by FE-SEM/EDS, TEM and ICP-AES. The structure refinement reveals that $La_{0.5}Ca_{0.5}MnO_3$ has orthorhombic, perovskite type unit cell. The magnetic characterizations were identified through measurement of magnetic moment by VSM.
Keywords
$La_{0.5}Ca_{0.5}MnO_3$; CP/MAS $^{13}C$ NMR; TEM; ICP-AES; VSM;
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Times Cited By KSCI : 1  (Citation Analysis)
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