The suppression of demagnetizing field heterogeneity in ferromagnetic powders


Тип публикации: статья из журнала (материалы конференций, опубликованные в журналах)

Конференция: Moscow International Symposium on Magnetism, MISM 2014; Москва, Россия; Москва, Россия

Год издания: 2015

Идентификатор DOI: 10.4028/

Ключевые слова: Demagnetizing field, Electroless powders, Ferromagnetic resonance, Dispersions, Ferromagnetic materials, Ferromagnetism, Hysteresis, Hysteresis loops, Magnetic materials, Magnetism, Electroless, Ferromagnetic powders, Ferromagnetic resonance (FMR), Magnetic particle, Non-magnetic matrix, Nonmagnetic phase, Relative density, Powders

Аннотация: The two ways of reducing the dispersion of the demagnetizing fields in magnetic powders of cobalt alloys have been tested: the isolation of magnetic particles in nonmagnetic matrix and compaction of the powders. The ferromagnetic resonance (FMR) and the hysteresis loops of the pretreated magnetic powders were investigated. The FMR Показать полностьюlinewidth is significantly narrowed both with increasing of the nonmagnetic fraction in the samples prepared by the first way and with increasing of relative density of the compacts. The limit case of FMR linewidth in continuous magnetic film there is no dispersion of the demagnetizing fields is in good agreement with discussed data. The hysteresis loops of powder with the particles coated by the non-magnetic phase became narrow and easy saturated with increasing of nonmagnetic phase fraction. © (2015) Trans Tech Publications, Switzerland.

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Журнал: Solid State Phenomena

Выпуск журнала: Vol. 233-234

Номера страниц: 629-632


  • Yaroslavtsev R. (Siberian Federal University)
  • Li O. (Siberian Federal University)
  • Komogortsev S. (Institute of Physics, SB Russian Academy of Sciences)
  • Chekanova L. (Institute of Physics, SB Russian Academy of Sciences)
  • Denisova E. (Institute of Physics, SB Russian Academy of Sciences)
  • Velikanov D. (Institute of Physics, SB Russian Academy of Sciences)
  • Iskhakov R. (Institute of Physics, SB Russian Academy of Sciences)
  • Kuzovnikova L. (Krasnoyarsk Institute of Railways Transport)

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