Crystallographically textured Ba0.8La0.2Fe11.8-xCu0.2O19-δ hexaferrites with narrow FMR linewidth |
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| Affiliation: | 1. Laboratory of Crystal Growth, South Ural State University, 454080, Chelyabinsk, Lenin Av, 76, Russia;2. Department of Biophysics, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441, Dammam, Saudi Arabia;3. Department of Nanomedicine Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441, Dammam, Saudi Arabia;4. SSPA “Scientific and Practical Materials Research Centre of NAS of Belarus”, 220072, Minsk, P. Brovki Str, 19, Belarus;5. National University of Science and Technology MISiS, 119049, Moscow, Leninsky Av., 4, Russia;1. Materials R&D Center, Samsung Electronics, 16677 Suwon, Republic of Korea;2. Department of Materials Science&Engineering, Korea National University of Transportation, 27469 Chungju, Republic of Korea;1. School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 610054, China;2. Global Energy Interconnection Research Institute, Beijing, 102211, China |
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| Abstract: | M-type hexaferrites which exhibit strong uniaxial anisotropy field, are promising for the applications in self-biased microwave and millimeter wave (MMW) devices. Here we demonstrate crystallographically textured hexaferrites with narrow ferromagnetic resonance (FMR) linewidth synthesized by the conventional ceramic method. Meanwhile, the relationship between iron-deficiency content and microstructure, crystallographic, and magnetic properties are researched. These hexaferrites have strong remanence ratio of above 0.9 along c-axis. By fitting of Lorentzian function to absorption derivative, we probe detailedly into the zero-field FMR linewidth of Ba0.8La0.2Fe11.8-xCu0.2O19-δ hexaferrites. When x equals 1.0, it indicates the narrowest FMR linewidth of 324Oe, as compared with previous reports for crystallographically textured hexaferrites. |
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| Keywords: | Barium hexaferrites Iron deficiency Anisotropy field FMR linewidth |
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