Synthesis and characterization of La(Cr,Fe,Mn)O3 nanoparticles obtained by co-precipitation method

Autor:	P.P. Pedra, J.G.S. Duque, F.A. Fabian, J.L.S. Filho, Cristiano T. Meneses
Rok vydání:	2015
Předmět:	Materials science Transition metal Ferromagnetism Coprecipitation X-ray crystallography Analytical chemistry Antiferromagnetism Orthorhombic crystal system Crystal structure Crystallite Condensed Matter Physics Electronic Optical and Magnetic Materials
Zdroj:	Journal of Magnetism and Magnetic Materials. 379:80-83
ISSN:	0304-8853
Popis:	Magnetic and structural properties have been investigated in La(Cr,Fe,Mn)O3 nanoparticles obtained by co-precipitation method. The X-ray diffraction measurements allied to Rietveld method confirm the formation of LaCrO3, LaFeO3 and LaMnO3 nanoparticles with crystal structure orthorhombic (Pbnm), orthorhombic (Pnma) and rhombohedral (R-3c), respectively. We also verified an decreasing in the average crystallite size from 73 to 26 nm, depending of the transition metal. The magnetic measurements reveal an antiferromagnetic behavior for the LaCrO3 sample with TN~289 K, and a weak ferromagnetic ordering for the LaMnO3 sample with Tc~200 K.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0a538d843450d6e5a033c5c790139d66 https://doi.org/10.1016/j.jmmm.2014.12.004 Zobrazit plný text záznamu Full Text from ScienceDirect