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Low Temperature Ordering And High (001) Orientation Of [Fe/Pt/Cu]18 Multilayer Films, Yongsheng Yu, Xingzhong Li, T A. George, W D. Fei, Haibo Li, David J. Sellmyer
Low Temperature Ordering And High (001) Orientation Of [Fe/Pt/Cu]18 Multilayer Films, Yongsheng Yu, Xingzhong Li, T A. George, W D. Fei, Haibo Li, David J. Sellmyer
David Sellmyer Publications
[Fe/Pt/Cu]18 multilayer films with different Cu thicknesses were prepared on thermally oxidized Si (111) substrates at room temperature using dc- and rf-magnetron sputtering. The magnetic proper-ties and microstructure of [Fe/Pt/Cu]18 multilayer films annealed at various temperatures have been investigated. Compared with pure [Fe/Pt]18 multilayer films low-temperature ordering and (001) ori-entation in the annealed films with Cu volume concentration below 20% can be obtained. During annealing process Cu atoms diffused into FePt lattice which enhanced the diffusion of Fe and Pt atoms and the grain growth of the films. The perpendicular anisotropy and hard magnetic properties of the …
Effects Of Deposition Temperature And In-Situ Annealing Time On Structure And Magnetic Properties Of (001) Orientation Fept Films, Yongsheng Yu, T A. George, Haibo Li, Daqian Sun, Zhenan Ren, David J. Sellmyer
Effects Of Deposition Temperature And In-Situ Annealing Time On Structure And Magnetic Properties Of (001) Orientation Fept Films, Yongsheng Yu, T A. George, Haibo Li, Daqian Sun, Zhenan Ren, David J. Sellmyer
David Sellmyer Publications
FePt films were prepared on (100) oriented single crystal MgO substrates at high temperature rang-ing from 620 until 800°C and in-situ annealed for different times ranging from 0 to 60 min to obtain ordered FePt films. The structural analysis indicates that FePt films grow epitaxially on MgO (100) substrates. Both increasing deposition temperature and in-situ annealing time enhance the (001) tex-ture and ordering of FePt films. The magnetic analysis shows that these L10 FePt films have perpen-dicular anisotropy and the easy magnetization c-axis is perpendicular to the film plane. Magnetization reversal is controlled by a rotational mechanism. The hard magnetic …