High-frequency characteristics of CoFeVAlONb thin films |
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| Authors: | KE Lee ND Ha MH Phan CO Kim |
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| Institution: | 1. Department of Materials Science and Engineering, Chungnam National University, Daejeon 305-764, Korea;2. Research Center for Advanced Magnetic Materials, Chungnam National University, Daejeon 305-764, Korea;3. Department of Aerospace Engineering, University of Bristol, Queen''s Building, Bristol BS8 1TR, England |
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| Abstract: | High-frequency characteristics of CoFeVAlONb thin films were studied. A thin film of Co43.47Fe35.30V1.54Al5.55O9.93Nb4.21 is observed to exhibit excellent magnetic properties; magnetic coercivity of 1.24 Oe, uniaxial in-plane anisotropy field of 66.99 Oe, and saturation magnetization of 19.8 kG. The effective permeability of the film is as high as 1089 and is stable up to 1.8 GHz, and with ferromagnetic resonance over 3 GHz. This film also has very high electrical resistivity of about 628 μΩ cm. These superior properties make it ideal for high-frequency magnetic applications. |
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| Keywords: | 75 70 &minus i |
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