1. Polyol process for Fe-based hard(fct-FePt) and soft(FeCo) magnetic nanoparticles
- Author
-
Jeyadevan, B., Shinoda, K., Justin, R.J., Matsumoto, T., Sato, K., Takahashi, H., Sato, Y., and Tohji, K.
- Subjects
Nanotechnology -- Research ,Nanotechnology -- Magnetic properties ,Nanoparticles -- Research ,Nanoparticles -- Magnetic properties ,Electromagnetism -- Research ,Business ,Electronics ,Electronics and electrical industries - Abstract
The polyol process and the parameters influencing the synthesis of metal and alloy nanoparticle are discussed. Then, the synthesis strategies to obtain hard (Fe-Pt) and soft (Fe-Co) nanoparticles by using polyol process is presented. Under optimum synthesis conditions, partially ordered Fe-Pt nanoparticles with an average grain diameter of 8 nm exhibited a coercivity of 460 kA/m in the as-synthesized state. In the case of Fe-Co alloy particles, synthesis technique to prepare particles with varying Fe concentration in the size ranging between 300 and 50 nm is reported. Index Terms--Co alloys, FeCo, FePt, polyol process, soft magnetic materials.
- Published
- 2006