کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1624030 | 1516414 | 2008 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Tb doped CoNbZr soft magnetic films with high anisotropy field for applications in GHz frequency region
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
CoNbZr films for an adjustable magnetic anisotropy field Hk by doping with rare-earth of different atomic ratio Tb element were obtained in this work. The effect of Tb addition ranged from 0 to 4 at.% on the magnetic properties of the amorphous CoNbZr films was further investigated. The results show that the magnetic anisotropy field Hk increases sharply with the addition of Tb while the coercivity Hch along the hard axis and Hce along the easy axis change slightly with increasing Tb content in the films. As a consequence, CoNbZr film doped with 2 at.% of Tb exhibits excellent soft magnetic properties with a saturation magnetization 4ÏMs of 8.9 kG, a hard axis coercivity Hch of 1.79 Oe, a easy axis coercivity Hce of 1.4 Oe and a magnetic anisotropy field Hk of 87 Oe. The measured ferromagnetic resonance frequency fFMR of this film is 2.30 GHz. The real permeability μⲠis about 100, which is maintained up to 2 GHz. In addition, there is a broad band of the imaginary permeability μⳠover a large frequency band, indicating high losses. Therefore, Tb doped CoNbZr film is an excellent candidate for high frequency applications such as electromagnetic interference suppressors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 463, Issues 1â2, 8 September 2008, Pages 471-474
Journal: Journal of Alloys and Compounds - Volume 463, Issues 1â2, 8 September 2008, Pages 471-474
نویسندگان
Shaowei Bie, Jianjun Jiang, Gang Du, Qiang Ma, Lin Yuan, Yongjiang Di, Zekun Feng, Huahui He,