کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5490449 | 1524780 | 2017 | 28 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of field annealing on Gilbert damping of polycrystalline CoFe thin 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
The effects of annealing and magnetic field annealing on the Gilbert damping constant of polycrystalline CoFe thin films were investigated. Angle dependent ferromagnetic resonance (FMR) demonstrates that an in-plane (IP) anisotropy is developed by field annealing which dramatically reduces the effective Gilbert damping constant. An inverse relation between effective IP anisotropic field and effective damping is shown by FMR measurement in cryogenic environment. This relation is further confirmed in bilayer films of IrMn/CoFe where a strong in-plane unidirectional anisotropy is developed. A large effective IP anisotropic field is possibly associated with a smaller distribution of local fields which reduces the FMR linewidths and subsequently effective damping.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 441, 1 November 2017, Pages 264-270
Journal: Journal of Magnetism and Magnetic Materials - Volume 441, 1 November 2017, Pages 264-270
نویسندگان
Jing Zhou, Shaohai Chen, Weinan Lin, Qing Qin, Liang Liu, Shikun He, Jingsheng Chen,