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Title: Control of the microstructure of FePt-SiNx -C (001) film by a nucleation layer grown on TiN intermediate layer
Authors: Li, H.H.
Dong, K.F. 
Chow, G.M. 
Chen, J.S. 
Keywords: FePt thin film
MgO nucleation layer
perpendicular magnetic media
TiN intermediate layer
Issue Date: 2013
Citation: Li, H.H., Dong, K.F., Chow, G.M., Chen, J.S. (2013). Control of the microstructure of FePt-SiNx -C (001) film by a nucleation layer grown on TiN intermediate layer. IEEE Transactions on Magnetics 49 (7) : 3299-3302. ScholarBank@NUS Repository.
Abstract: The microstructure and magnetic properties of granular FePt-SiN x-C films were modified by introducing an MgO nucleation layer grown on the TiN intermediate layer. It was found that the deposition of an ultra-thin MgO nucleation layer could reduce the FePt grain size, narrow grain size distribution and improve grain isolation by creating more nucleation sites. When MgO nucleation layer thickness varied from 0 to 0.36 nm, FePt grain size was reduced from 8.51 nm to 7.18 nm and the standard deviation of the grain size distribution was narrowed from 2.16 nm to 1.51 nm. Good L10 (001) texture was maintained and large out-of-plane coercivity (27.5 kOe) was obtained at the MgO thickness of 0.36 nm. Meanwhile, Δθ50 of FePt (001) peak decreased from 7.1° to 6.4°, indicating the improved easy axis distribution of FePt grains. However, with the further increase of the MgO nucleation layer thickness, MgO nuclei developed into a continuous layer, FePt (111) orientation appeared and the perpendicular magnetic anisotropy was deteriorated. © 2013 IEEE.
Source Title: IEEE Transactions on Magnetics
ISSN: 00189464
DOI: 10.1109/TMAG.2013.2242433
Appears in Collections:Staff Publications

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