کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9834530 | 1524911 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mechanism of magnetization process of island-like L10 FePt films
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
L10 FePt films composed of separated island-like particles with a size distribution were epitaxially deposited on MgO (0 0 1) substrate at 780 °C. The most probable size of particle at nominal thickness tN=25 nm is 10 times as big as that at tN=5 nm.Most of the as-deposited particles are single-domain at tN=5 nm, and the majority are multi-domain at tN=25 nm.Out-of-plane coercivity is â¼50 kOe at tN=25 nm.A peculiar asymmetric initial magnetization process against the direction of applied perpendicular field was imaged by an in-field magnetic force microscope (MFM). At +6 kOe, a few particles were kept as multi-domain structures as long as the majority became saturated; however, they became saturated only at â1 kOe. High coercivity is attributed to a wide distribution of nucleation field HN ranging from 20 to 70 kOe.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 287, February 2005, Pages 219-223
Journal: Journal of Magnetism and Magnetic Materials - Volume 287, February 2005, Pages 219-223
نویسندگان
Guoqing Li, Hideaki Takahoshi, Hirotaka Ito, Takahiro Washiya, Hitoshi Saito, Shunji Ishio, Toshiyuki Shima, Koki Takanashi,