中国物理B ›› 2010, Vol. 19 ›› Issue (9): 97401-097401.doi: 10.1088/1674-1056/19/9/097401

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

High frequency behaviours and Mössbauer study of field annealed FeCuNbSiB alloy ribbons

马小明, 李志伟, 位建强, 王涛, 李发伸   

  1. Institute of Applied Magnetics, Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, China
  • 收稿日期:2010-01-31 修回日期:2010-03-21 出版日期:2010-09-15 发布日期:2010-09-15
  • 基金资助:
    Project supported by National Natural Science Foundation of China (Grant No. 10774061).

High frequency behaviours and Mössbauer study of field annealed FeCuNbSiB alloy ribbons

Ma Xiao-Ming(马小明), Li Zhi-Wei(李志伟), Wei Jian-Qiang(位建强), Wang Tao(王涛)†, and Li Fa-Shen(李发伸)   

  1. Institute of Applied Magnetics, Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, China
  • Received:2010-01-31 Revised:2010-03-21 Online:2010-09-15 Published:2010-09-15
  • Supported by:
    Project supported by National Natural Science Foundation of China (Grant No. 10774061).

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摘要： This paper investigates the high frequency behaviours and magnetic anisotropy of rapidly solidified FINEMET (Fe73.5Si13.5B9Nb3Cu1) alloy ribbons annealed in an applied magnetic field. It finds that the ribbons annealed with the applied magnetic field show much higher resonance frequencies and have even higher permeability at higher frequencies than the samples annealed without the magnetic field and the non-annealed ribbons. M?ssbauer spectroscopy had been employed to study the spatial distribution of the magnetic moments of five selected FINEMET alloy ribbons in different heat-treated conditions. The results show that an easy plane has been established after annealling in the magnetic field, while for the other ribbons this effect is not significant. Hence, the relationship between magnetic field annealing and high frequency property has been bridged by the bianisotropic theory.

Abstract: This paper investigates the high frequency behaviours and magnetic anisotropy of rapidly solidified FINEMET (Fe73.5Si13.5B9Nb3Cu1) alloy ribbons annealed in an applied magnetic field. It finds that the ribbons annealed with the applied magnetic field show much higher resonance frequencies and have even higher permeability at higher frequencies than the samples annealed without the magnetic field and the non-annealed ribbons. Mössbauer spectroscopy had been employed to study the spatial distribution of the magnetic moments of five selected FINEMET alloy ribbons in different heat-treated conditions. The results show that an easy plane has been established after annealling in the magnetic field, while for the other ribbons this effect is not significant. Hence, the relationship between magnetic field annealing and high frequency property has been bridged by the bianisotropic theory.

Key words: FINEMET, field annealing, Mössbauer spectrum, high frequency

中图分类号: 

  • 7430G