کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1525679 995359 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of carbon mixing on the degree of perpendicular texture of FePt:C nanocomposite film for magnetic recording media
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Effect of carbon mixing on the degree of perpendicular texture of FePt:C nanocomposite film for magnetic recording media
چکیده انگلیسی

The effect of carbon mixing on the perpendicular magnetization of magnetron sputtered FePt thin films was studied using magnetic property measurement and X-ray diffraction, and TEM microscopy. Micromagnetic simulation was carried out to study the effect of texture on the perpendicular coercivity. Unlike general conviction, the mixing of FePt with carbon led to a significant enhancement in the perpendicular magnetization. The maximum enhancement of perpendicular magnetization was observed at about 20 vol.% of carbon, where carbon amorphous film started to completely enclose the individual FePt grains. This reason was explained that the epitaxial growth and thus perpendicular texture of ordered FePt grains were maximized due to the relaxation of coherency for epitaxial growth which was maximized in the isolated grains. The perpendicular coercivity reached 8500 Oe, while the in-plane coercivity (120 Oe) remained negligible. The simulation showed that the enhancement of perpendicular texture can largely increase the perpendicular coercivity of FePt:C thin film.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 118, Issue 1, 15 November 2009, Pages 213–218
نویسندگان
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