Abstract
Core-shell nanoparticles composed of ferromagnetic cobalt platinum cores covered by non-magnetic silica shells were synthesized by laser ablating a composite target in a helium background gas. The average diameter of the CoPt core was controlled by adjusting the CoPt/SiO2 ratio of the ablation target. The particles were also classified in the gas phase using an electrical mobility classifier. The present method successfully synthesized nearly monodispersed nanoparticles with an average core diameter of 2.5nm. This article describes the synthesis of the core-shell nanoparticles and investigates their magnetic properties.
Original language | English |
---|---|
Article number | 054 |
Pages (from-to) | 255-258 |
Number of pages | 4 |
Journal | Journal of Physics: Conference Series |
Volume | 59 |
Issue number | 1 |
DOIs | |
Publication status | Published - Apr 1 2007 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)