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Title: Low temperature deposited L 10 FePt-C (001) films with high coercivity and small grain size
Authors: Chen, J.S.
Lim, B.C.
Hu, J.F.
Liu, B.
Chow, G.M. 
Ju, G.
Issue Date: 2007
Source: Chen, J.S., Lim, B.C., Hu, J.F., Liu, B., Chow, G.M., Ju, G. (2007). Low temperature deposited L 10 FePt-C (001) films with high coercivity and small grain size. Applied Physics Letters 91 (13) : -. ScholarBank@NUS Repository.
Abstract: FePt-C films with high coercivity, (001) texture, and small grain size were deposited on MgOCrRu /glass substrate by cosputtering FePt and carbon at 350 °C. The out-of-plane coercivity measured at room temperature increased from 9.6 to 15.1 kOe when C concentrations increased from 0% to 15%. Further increasing the C contents to 20% and 25% caused the decrease of coercivity to 13.6 and 11.8 kOe, respectively. With C doping, a two-layer structure of FePt-C films was formed and fcc-phase FePt particles were found. By optimizing the sputtering process, FePt-C (001) film with coercivity higher than 14.4 kOe and columnar FePt grains of 7.5 nm in diameter was obtained, which are suitable for ultrahigh density perpendicular recording. © 2007 American Institute of Physics.
Source Title: Applied Physics Letters
ISSN: 00036951
DOI: 10.1063/1.2789790
Appears in Collections:Staff Publications

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