News Column

Reports Outline Nanoparticles Study Results from University of Paris

June 27, 2014

By a News Reporter-Staff News Editor at Science Letter -- Investigators discuss new findings in Nanoparticles. According to news reporting from Paris, France, by NewsRx journalists, research stated, "Magnetic nanoparticles (NPs) of magnetite and Ni-Zn ferrites, synthesized by the forced hydrolysis in a polyol method, were used as the starting material to consolidate them by means of the spark plasma sintering (SPS) method."

The news correspondents obtained a quote from the research from the University of Paris, "The microstructural changes were analyzed by X-ray diffraction, transmission electron microscopy (TEM), magnetic hysteresis loops, and ferromagnetic resonance (FMR) measurements. FMR spectra changed from a high resonance field and small linewidth for the nanoparticles to a spectrum with reduced resonance field with extremely broadened linewidths for the consolidated materials."

According to the news reporters, the research concluded: "These effects can be ascribed to the evolution from superparamagnetic NPs to the formation of a nanostructured ceramic structure with high grain-to-grain interactions and with increased randomly distributed anisotropy axes."

For more information on this research see: The effects of spark plasma sintering consolidation on the ferromagnetic resonance spectra (FMR) of Ni-Zn ferrites. Physica Status Solidi A-Applications and Materials Science, 2014;211(5):1062-1066. Physica Status Solidi A-Applications and Materials Science can be contacted at: Wiley-V C H Verlag Gmbh, Boschstrasse 12, D-69469 Weinheim, Germany (see also Nanoparticles).

Our news journalists report that additional information may be obtained by contacting R. Ortega-Zempoalteca, Univ Paris Diderot, Lab ITODYS, Sorbonne Paris Cite, CNRS UMR 7086, F-75205 Paris, France. Additional authors for this research include Y. Flores-Arias, G. Vazquez-Victorio, T. Gaudisson, S. Ammar, Z. Vargas-Osorio, U. Acevedo-Salas and R. Valenzuela.

Keywords for this news article include: Paris, France, Europe, Nanotechnology, Emerging Technologies

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Source: Science Letter

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