Fabrication of FePt/M (M = C, Ag, Si) nanoparticulate thin films with perpendicular anisotropy

Yunhe Huang, Jun Wan, Yong Zhang and George Hadjipanayis

International Journal of Product Development, 2008, vol. 5, issue 3/4, 259-267

Abstract: FePt-based nanoparticulate thin films have been deposited by sputtering onto single crystal MgO [100] substrates at elevated temperatures up to 650°C. The deposited FePt film showed a [001] texture due to lattice matching between FePt and MgO substrate. The effects of an additional element on the magnetic and structural properties have been studied; addition of Ag leads to a lower transformation temperature from the disordered fcc to the ordered L10 phase. Si addition leads to a ternary FePtSi system where Si atoms enter into the FePt lattice interstitially, resulting in changes of lattice parameters and magnetic properties.

Keywords: FePt films; iron-platinum films; perpendicular recording; high anisotropy; magnetic thin films; nanoparticulate thin films. (search for similar items in EconPapers)
Date: 2008
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