Self assembled nanoparticulate copt for data storage applications

TLDR: In this paper, a novel system has been used to manufacture nanoparticulate Cu:Pt with an average diameter of 8nm and very small standard deviation, using a protein called ferritin that normally stores iron in viva.

Abstract: A novel system has been used to manufacture nanoparticulate Cu:Pt with an average diameter of 8nm and very small standard deviation. The system uses a protein called ferritin that normally stores iron in viva, but this iron can be chemically removed. The hollow protein can then be used to grow Co:Pt nanopmicles which are subsequently heat treated to promote a particular crystalline phase. The femtin can be deposited onto a substrate where it naturally self assembles into an HCP monolayer under appropriate conditions. If the protein is then carbonised or otherwise removed, a regular HCP close packed array of 8nm Co:Pt particles is left. The theoretical storage densit of a thin film exploiting the patterned qualities of the HCP arrangement is 4.5 Tbitshu , Work is presented regarding the development of a magnetic thin film media based on these processes.