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Structure and magnetic properties of nanocrystalline ferromagnets (I)

Effective anisotropy

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Abstract

The role of effective anisotropy in nanocrystalline ferromagnets is investigated. These alloys are prepared by annealing amorphous ribbons and have excellent soft magnetic properties. A two-phase model is established considering the role of the intergranular amorphous phase. The results indicate a strong dependence of effective anisotropy on the structure and magnetic parameters of the amorphous phase as well as on the size of a grains. In view of the new model, the magnetic hardening beyond the optimally annealing temperature seems to be ascribed to the deterioration in magnetic properties of interfacial amorphous phase.

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References

  1. Yoshizawa, Y., Oguma, S., Yamamoto, T., New Fe-based soft magnetic alloys composed of ultrafine grain structure,J. Appl. Phys., 1988, 64: 6044.

    Article  Google Scholar 

  2. Suzuki, K., Makino, N., Kataoka, N.et a1., Hgh saturation magnetization and soft magnetic properties of bcc Fe-Zr-B alloys with ultrafine grain structure,Mater. Trans. JIM, 1990, 31: 743.

    Google Scholar 

  3. Fujii, Y., Fujita, H., Seki, A.etal., Magnetic properties of fie crystalline Fe-P-CCu-X alloys,J. Appl. Phys., 1991, 70: 6241.

    Article  Google Scholar 

  4. Herzer, G., Grain size dependence of coercivity and permeability in nanocrystalline ferromagnets,IEEE Trans. Magn., 1989, 25: 3327.

    Article  Google Scholar 

  5. Sawa, T., Yakaashi, Y., Magnetic properties of FeCu(3d transition metal) SiB alloys composed of ultrafine grain structure,J. Appl. Phys., 1990, 67: 5565.

    Article  Google Scholar 

  6. He Kai-Yuan, Bai KuiChang, Zhi Jinget al., An exploration of the superior properties in soft nanocrystalline Fe-Cu-Nb-Si-B, inProc. Magnetic Nanometered Materials and Physics (in Chinese), Beijing: Institute of Physics, 1993, 1–2.

    Google Scholar 

  7. Zhang Jiaji, Tu Guochao, Li Dianyinget al., An investigation of high initial permeability in nanocrystalline FeCuSiB, inProc. Magnetic Nanometered Materials and Physics (in Chinese), Beijing: Institute of Physics, 1993, 3–4.

    Google Scholar 

  8. Harris, H., Plischke, M., Zuckermann, M, J., New model for amorphous magnetism,Phys. Rev. Lett., 1973, 31: 160.

    Article  Google Scholar 

  9. Alben, R., Becker, J.J., Chi, M.C., Random anisotropy in amorphous alloys,J. Appl. Phys., 1978, 49: 1653.

    Article  Google Scholar 

  10. Ma Ruzhang,Mössbauer Spectroscopy (in Chinese), Beijing: Institute of Iron and Steel Beijing, 1984, 126–127.

    Google Scholar 

  11. Liu, T., Xu, Z.X., Ma, R.Z.et al., An investigation of structure and magnetic properties of nanocrystalline Fe73.5-Cu1Mo3Si13.5B9 alloy,Acta Physica Sinica (in Chinese). 1996, 45: 528.

    Google Scholar 

  12. Reininger, T., Hofmann, B., Kronmuller, H., Magnetization processes in nanocrystalline ferromagnets,J. Magn. Magn. Mater., 1994, 111: L220.

    Article  Google Scholar 

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Authors and Affiliations

  1. Department of Materials Physics, University of Science and Technology Beijing, 100083, Beijing, China

    Tao Liu, Zuxiong Xu, Zhongtao Zhao, Ruzhang Ma, Tiandou Hu, Yaning Xie & Yinghuan Guo

  2. Synchrotron Radiation Laboratory, Institute of High Energy Physics, Chinese Academy of Sciences, 100039, Beijing, China

    Tao Liu, Tiandou Hu, Yaning Xie & Yinghuan Guo

  3. Institute of High Energy Physics, Chinese Academy of Sciences, 100080, Beijing, China

    Yinghuan Guo

Authors
  1. Tao Liu
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  2. Zuxiong Xu
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  3. Zhongtao Zhao
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  4. Ruzhang Ma
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  5. Tiandou Hu
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  6. Yaning Xie
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  7. Yinghuan Guo
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Additional information

Project supported by the Special Item Foundation for Doctor of Advanced College, the Chinese Academy of Sciences and Beijing Synchrotron Radiation Facility. National Laboratory.

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Liu, T., Xu, Z., Zhao, Z. et al. Structure and magnetic properties of nanocrystalline ferromagnets (I). Sci. China Ser. A-Math. 40, 297–302 (1997). https://doi.org/10.1007/BF02874523

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  • DOI: https://doi.org/10.1007/BF02874523

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