Title :
In situ ordering of FePt thin films by using Ag/Si and Ag/Mn3 Si/Ag/Si templates
Author :
Hsu, Yu-Nu ; Jeong, Sangki ; Lambeth, David N. ; Laughlin, David E.
Author_Institution :
Carnegie Mellon Univ., Pittsburgh, PA, USA
fDate :
9/1/2000 12:00:00 AM
Abstract :
In situ ordering of FePt thin films by sputtering onto Ag/Si and Ag/Mn3Si/Ag/Si templates has been demonstrated. Due to the evolution from island-like to a continuous film structure as a function of Ag thickness, the ordering and orientation of the FePt films both change with Ag thickness. A continuous (002) Ag film results in a greater L10 phase formation with c-axis oriented both perpendicular to and in the film plane while the island-like Ag template results in less L10 phase formation, but a preferential c-axis orientation in the film plane. On the other hand, the FePt films deposited onto the Ag/Mn3Si/Ag/Si template have their c axes aligned perpendicular to the film plane
Keywords :
discontinuous metallic thin films; ferromagnetic materials; iron alloys; magnetic thin films; order-disorder transformations; platinum alloys; sputter deposition; texture; Ag thickness; Ag-Mn3Si-Ag-Si; Ag/Mn3Si/Ag/Si templates; Ag/Si templates; FePt; FePt thin films; L10 phase formation; continuous (002) Ag film; continuous film structure; in situ ordering; island-like Ag template; island-like structure; preferential c-axis orientation; sputtering; Epitaxial growth; Iron; Magnetic films; Magnetic materials; Magnetic recording; Molecular beam epitaxial growth; Semiconductor films; Semiconductor thin films; Sputtering; Substrates;
Journal_Title :
Magnetics, IEEE Transactions on
