Structure and magnetic properties of L10 FePt film with Ag heat sink layer

Abstract

In this work, the L 10 FePt films with a Ag heat sink layer for the application of heating assisted magnetic recording (HAMR) were developed. It was found that the crystalline orientation of the FePt layer depended on the texture of the fcc Ag layer, which was strongly affected by the deposition conditions. The (200) textured Ag layer can induce the L 10 FePt (001) texture films due to epitaxial growth with the epitaxial growth relationship of FePt (001) [100]//Ag (001) [100]//CrRu (002) [110] and thus can act as the heat sink layer for HAMR application,. The magnetic properties of the L 10 FePt films were maintained with the thickness of the Ag heat sink layer from 30 to 100 nm. © 2009 American Institute of Physics.