Publications

Synthesis of highly magnetic iron nanoparticles suitable for field-structuring using a b-diketone surfactant

Huber, Dale L.; Huber, Dale L.; Venturini, Eugene L.; Martin, James E.; Provencio, P.N.

We describe the synthesis of highly magnetic iron nanoparticles using a novel surfactant, a {beta}-diketone. We have produced 6 nm iron nanoparticles with an unusually high saturation magnetization of more than 80% the value of bulk iron. Additionally, we measured a particle susceptibility of 14 (MKS units), which is far above the value possible for micron-scale spherical particles. These properties will allow for formation of composites that can be highly structured by magnetic fields.