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Spontaneous Magnetization Loss Dynamics of (Pr, Dy)–(Fe, Co)–B Magnets

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Abstract

Comparison of spontaneous magnetization losses in (Pr0.51Dy0.49)13(Fe0.64Co0.36)80B7 and (Pr0.51Dy0.49)13(Fe0.64Co0.36)79Cu1B at % sintered magnets shows that copper doping reduces these losses. This is associated with phase homogenization reducing the scattering fields at phase boundaries as well as with an increase in the mean anisotropy field and the coercive force that stabilizes time characteristics of a magnet. It is found that the demagnetization dynamics at room temperature is described by an exponential function.

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Funding

This work was supported by the Ministry of Industry and Trade of the Russian Federation.

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Authors and Affiliations

  1. All-Russian Scientific Research Institute of Aviation Materials, 105005, Moscow, Russia

    I. I. Rezchikova, N. S. Moiseeva, D. V. Korolev, R. B. Morgunov & V. P. Piskorskii

  2. Institute of Problems of Chemical Physics, 142432, Chernogolovka, Moscow oblast, Russia

    R. B. Morgunov

Authors
  1. I. I. Rezchikova
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  2. N. S. Moiseeva
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  3. D. V. Korolev
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  4. R. B. Morgunov
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  5. V. P. Piskorskii
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Corresponding author

Correspondence to I. I. Rezchikova.

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Translated by N. Wadhwa

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Rezchikova, I.I., Moiseeva, N.S., Korolev, D.V. et al. Spontaneous Magnetization Loss Dynamics of (Pr, Dy)–(Fe, Co)–B Magnets. Tech. Phys. 65, 377–381 (2020). https://doi.org/10.1134/S1063784220030214

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