Gold-coated iron nanoparticles in transparent Si3N4 matrix thin films

作者：Sanchez Marcos J; Cespedes E; Jimenez Villacorta F; Munoz Martin A; Prieto C^*

来源：Journal of Nanoparticle Research, 2013, 15(6): 1714.

DOI：10.1007/s11051-013-1714-2

• Core-shell nanoparticles
• Magnetic nanoparticles
• Magnetic nanoparticles in transparent films

A new method to prepare thin films containing gold-coated iron nanoparticles is presented. The ternary Fe-Au-Si3N4 system prepared by sequential sputtering has revealed a progressive variation of microstructures from Au/Fe/Au/Si3N4 multilayers to iron nanoparticles. Microstructural characterization by transmission electron microscopy, analysis of the magnetic properties and probing of the iron short-range order by X-ray absorption spectroscopy confirm the existence of a gold-coated iron nanoparticles of 1-2 nm typical size for a specific range of iron and gold contents per layer in the transparent silicon nitride ceramic matrix.

• 出版日期2013-6