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Title: Deposition temperature induced magnetic anisotropy variation in FePt-C soft/hard multilayer films
Authors: Huang, L.S.
Hu, J.F.
Chow, G.M. 
Chen, J.S. 
Issue Date: 15-Mar-2011
Citation: Huang, L.S., Hu, J.F., Chow, G.M., Chen, J.S. (2011-03-15). Deposition temperature induced magnetic anisotropy variation in FePt-C soft/hard multilayer films. Journal of Applied Physics 109 (6) : -. ScholarBank@NUS Repository.
Abstract: Multilayer exchange spring media were fabricated by subsequently reducing the deposition temperature of the FePt-C film from the bottom layer to the top layer. Magnetic anisotropy and coercivity of FePt-C film increased with the increasing of deposition temperature because the chemical ordering of L1 0 FePt improved with deposition temperature. A two-layer microstructure was observed in the multilayer samples with a closely-packed granular hard layer and an isolated granular overlayer consisting of the soft magnetic layers deposited at lower temperatures. The coercivity of the tri-layer media was reduced to 5.4 kOe, half of that of the hard single layer FePt-C (10.8 kOe). The thermal stability of the multilayer structure was maintained although some soft magnetic layers involved. © 2011 American Institute of Physics.
Source Title: Journal of Applied Physics
ISSN: 00218979
DOI: 10.1063/1.3554702
Appears in Collections:Staff Publications

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