La <inf>0.7</inf>Sr <inf>0.3</inf>MnO <inf>3</inf> nanoparticles coated with fatty amine

Abstract:

We report on the synthesis of La 0.7Sr 0.3MnO 3 (LSMO) nanoparticles having perovskite structure and particle size of the order of 30 nm. The process involves citrate-gel synthesis, size filtering, and surface coating with a shell of octadecyl amine (ODA) using electrostatic interaction-assisted novel chemical route. Magnetic measurements show the Curie temperature of ∼360 K establishing the desired stoichiometry and phase. Fourier transform infrared studies bring out that the amine group of ODA interacts with the LSMO surface. Refluidization yields uniform bkp_redispersion of the coated and dried powder. © 2005 American Institute of Physicsl.

Año de publicación:

2006

Keywords:

Fuente:

scopus