Magnetic property of Sm-Co nanoparticles prepared by solution phase metal salt reduction.

Department of Chemistry, Sogang University, Seoul 121-742, Korea.
Journal of Nanoscience and Nanotechnology (Impact Factor: 1.15). 12/2009; 9(12):7071-5.
Source: PubMed

ABSTRACT Sm-Co magnetic nanoparticles were successfully synthesized at high temperature above 680 degrees C in solution phase. The chemical composition was determined by EDX and it was found that the composition of as-synthesized Sm-Co magnetic nanoparticles showed less Sm content compared with the composition of starting materials. From TEM and FE-SEM measurements, the morphology of as-synthesized and heat-treated Sm-Co a magnetic nanoparticle was confirmed as hexagon and apatite crystal structure. Curie temperature was observed at around 680 degrees C correspond to SmCo5 phase. The magnetic property was measured by VSM and shows the ferromagnetic characteristics.