High-frequency magnetoresonance absorption in amorphous magnetic microwires |
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| Affiliation: | 1. Gebze Institute of Technology, P.K. 141, 41400 Gebze/Kocaeli, Turkey;2. Kazan Physical-Technical Institute, 10/7, Sibirsky Trakt, 420029 Kazan, Russia;3. Institute of Radiophysics and Electronics of NASU, 12, Ac.Proscura St., 61085 Kharkov, Ukraine;4. Kazan State University, 18, Kremlevskaya St., 420008 Kazan, Russia;1. Department of Chemistry, Paavai Engineering College, Pachal (Post), Namakkal 637018, Tamil Nadu, India;2. Department of Physics, Thiruvalluvar Government Arts College, Rasipuram 637 401, Tamil Nadu, India;3. Department of Chemistry, Chettinad College of Engineering & Technology, Karur, Tamil Nadu, India;4. Department of Chemistry, Sriram College of Arts and Science, Perumalpattu, Tiruvallur 602024, Tamil Nadu, India;5. Department of Chemistry, Dwaraka Doss Goverdhan Doss Vaishnav College (Autonomous), E.V.R. Periyar Road, Arumbakkam, Chennai, Tamil Nadu 600 106, India;6. Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, P. O. Box 84428, Riyadh 11671, Saudi Arabia;7. Department of Chemistry, College of Science, Taif University, Taif 21944, Saudi Arabia;8. Advanced Materials Research Chair, Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;1. Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication, Shanghai Institute for Advanced Communication and Data Science, Shanghai University, Shanghai 200444, China;2. Photonics and Optical Communications, School of Electrical Engineering and Telecommunications, University of New South Wales, Sydney 2052, NSW, Australia;3. Key Laboratory of In-fiber Integrated Optics of Ministry of Education, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China;4. Fiber Optical Sensing Center for Excellence, Yantai Research Institute, Harbin Engineering University, Yantai 264000, China;5. Key Laboratory for Special Fiber and Fiber Sensor of Hebei Province, School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China;6. Laseire Consulting Pty Ltd Sydney, NSW 2031, Australia;7. School of Chemistry University of Sydney, NSW 2006 Australia;8. State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China;1. State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, PR China;2. Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, 100124, PR China;1. CEIT and Tecnun (University of Navarra), P° de Manuel Lardizabal 15, 20018 San Sebastián, Spain;2. Escuela de Ingeniería Mecánica, Pontificia Universidad Católica de Valparaíso, Av. Brasil 2950, Valparaíso, Chile;3. Tyndall National Institute, University College Cork, Lee Maltings Complex, Dyke Parade T12R5CP, Cork, Ireland;4. SGIker (Magnetic Measurements), University of the Basque Country, Av. Tolosa 72, 20018 San Sebastián, Spain;5. Dept. of Materials Physics, University of the Basque Country, P° de Manuel Lardizabal 3, 20018 San Sebastián, Spain;1. Functional Ceramics Group, Korea Institute of Materials Science (KIMS), Changwon 51508, Republic of Korea;2. Department of Materials Science & Engineering, Inha University, Incheon 22212, Republic of Korea;1. MIIT Key Laboratory of Advanced Metallic and Intermetallic Materials Technology, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;2. Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China;3. Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Science, Hefei 230031, China;4. Materials and Intelligent Sensing Laboratory of Anhui Province, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China |
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| Abstract: | The Fe69Si16B10C5, Co75Si10B15, Co68Mn7Si10B15 amorphous microwires have been studied by the magnetoresonance absorption technique in the X (9.5 GHz), K (20–27 GHz) and Q (30–37 GHz) frequency bands. The specimens under study were metal threads of about 5 μm in diameter coated with dielectric Pyrex layer with thickness 5 μm. The dependences of magnetic resonance spectra on frequency and wire orientation have been measured. The analysis of the resonance signal parameters has revealed that well-known classical equations for FMR in a cylindrical-shaped sample could not be applied for these microwires. It is shown that due to the skin depth effect the model of hollow cylindrical tube has to be applied to explain the experimental results in the frequency range measured. The values of saturation magnetization, g-factor and anisotropy field have been estimated from the frequency dependence of the field for resonance. |
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