کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9594911 | 1507960 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of adsorbate carbon on spin reorientation transitions in Cu-capped ultrathin Ni films on Cu(0Â 0Â 1)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We have reinvestigated the Cu capping effect for Ni films on clean Cu(0Â 0Â 1) by means of polar and longitudinal magneto-optical Kerr effect measurements in order to account for previous discrepancies among the results regarding whether the Cu capping stabilizes perpendicular or in-plane magnetization. We concluded that Cu capping stabilizes perpendicular magnetization. We also found that the previous erroneous observation of in-plane stabilization could be accounted for by the presence of a small amount of C contamination, which was revealed to stabilize perpendicular magnetization surprisingly. The C atoms were found to act as surfactants and were always located at the top surface. As regards perpendicularly magnetized films on clean Cu(0Â 0Â 1), the enhancement of the coercivity with Cu capping was observed. This finding indicates that Cu does not act as a simple magnetism killer but effectively suppresses the surface anisotropy that favors in-plane magnetization.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 599, Issues 1â3, 30 December 2005, Pages 262-269
Journal: Surface Science - Volume 599, Issues 1â3, 30 December 2005, Pages 262-269
نویسندگان
Takeshi Nakagawa, Hirokazu Watanabe, Toshihiko Yokoyama,