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Mössbauer study on surface magnetic properties in magnetic fluids

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Abstract

The presence of Δm=0 lines of the Mössbauer spectra of small Fe3O4 particles coated with an organic surfactant in an applied field of 7 T at 5 K shows a non-collinear magnetic structure in the surface layer of these particles. From the temperature dependence of the hyperfine field, the anisotropy constantK was calculated.

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Authors and Affiliations

  1. Department of Physics, East China Normal University, Shanghai, People's Republic of China

    Yang Xie-long & Sun Xiao-duo

  2. Department of Chemistry, East China Normal University, Shanghai, People's Republic of China

    Zhou Nai-fu

Authors
  1. Yang Xie-long
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  2. Sun Xiao-duo
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  3. Zhou Nai-fu
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Projects supported by the Science Fund of the Chinese Academy of Sciences

Now working at the Shanghai Institute of Education

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Xie-long, Y., Xiao-duo, S. & Nai-fu, Z. Mössbauer study on surface magnetic properties in magnetic fluids. Appl. Phys. A 42, 65–67 (1987). https://doi.org/10.1007/BF00618160

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  • DOI: https://doi.org/10.1007/BF00618160

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