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Micromagnetic model of the Richter-type relaxation in vacancy-doped Fe3O4

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Abstract

Isothermal disaccommodation curves in vacancy-doped magnetite at room temperature show a typical Richter-type behaviour. Magnetic susceptibility decreases asymptotically according to a relaxation time of about 102 s, which is analyzed in terms of a progressive stabilization of the domains walls. The relaxation strength, vacancies and the restoring pressure on the Bloch walls are closely related.

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Authors and Affiliations

  1. Departamento de Electricidad y Magnetismo, Facultad de Ciencias, Universidad, Valladolid, Spain

    J. Iñiguez, J. Muñoz & C. de Francisco

  2. Departamento de Electricidad y Magnetismo, Facultad de Física, Universidad, Santiago de Compostela, Spain

    J. Rivas

Authors
  1. J. Iñiguez
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  2. J. Muñoz
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  3. C. de Francisco
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  4. J. Rivas
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Iñiguez, J., Muñoz, J., de Francisco, C. et al. Micromagnetic model of the Richter-type relaxation in vacancy-doped Fe3O4 . Appl. Phys. A 39, 287–289 (1986). https://doi.org/10.1007/BF00617274

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  • DOI: https://doi.org/10.1007/BF00617274

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