Magnetic and microwave properties of glass-coated amorphous ferromagnetic microwires
(0) Glass-coated amorphous FeCuNbSiB microwires were prepared by Taylor-Ulitovsky technique.X-ray diffractometry and scanning electron microscopy were used to investigate the microstructure and morphology of the glass-coated microwires respectively.The vibrating sample magnetometer and vector network analyzer were used to study the magnetostatic and microwave properties of glass-coated microwires.The experimental results show that the effective anisotropy of an array of 150 microwires of 10 mm in length is large than that of one microwire of 10 mm in diameter and an array of 150 microwires of 1 mm in diameter.The natural ferromagnetic resonance takes place as the microwave magnetic component is perpendicular to the microwires axis,and the electric dipole resonance takes place as the microwire is long or the short microwire concentration is moderate.The natural ferromagnetic resonance shifts to higher frequency with the larger microwire concentration.The electric dipole resonance is governed by the microwires length and concentration.The glass-coated FeCuNbSiB microwires can be used to design EMI filters and microwave absorbing materials.
glass-coated amorphous microwires magnetic property magnetic microwires-dielectric composite natural ferromagnetic resonance electric dipole resonance
DI Yong-jiang JIANG Jian-jun DU Gang TIAN Bin BIE Shao-wei HE Hua-hui
Department of Electronic Science and Technology,Huazhong University of Science and Technology,Wuhan 430074,China
国际会议
2007年国际有色金属大会(International Conference of Nonfereous Materials 2007)(ICNFM)
长沙
英文
2007-11-28（万方平台首次上网日期，不代表论文的发表时间）