Тип публикации: статья из журнала
Год издания: 2020
Идентификатор DOI: 10.1134/S1063782620120362
Ключевые слова: ferrihydrite, magnetic anisotropy, magnetic resonance, nanoparticles
Аннотация: Abstract: Ferromagnetic resonance was used to study three types of ferrihydrite nanoparticles: nanoparticles formed as a result of the cultivation of microorganisms Klebsiella oxytoca; chemically prepared ferrihydrite nanoparticles; chemically prepared ferrihydrite nanoparticles doped with Cu. It is established from the ferromagnetic resonance data that the frequency-field dependence (in the temperature range ТP < T < T*) is described by the expression: 2πν/γ = НR + HA(T = 0)(1 – T/Т*), where γ is the gyromagnetic ratio, HR is the resonance field. The induced anisotropy HA is due to the spin-glass state of the near-surface regions. TP temperature characterizes the energy of the interparticle interaction of nanoparticles. © 2020, Pleiades Publishing, Ltd.
Издание
Журнал: Semiconductors
Выпуск журнала: Vol. 54, Is. 12
Номера страниц: 1710-1712
ISSN журнала: 10637826
Издатель: Pleiades journals
Персоны
- Stolyar S.V (SB Russian Acad Sci, Kirensky Inst Phys, Krasnoyarsk 660036, Russia; Fed Res Ctr KSC SB RAS, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)
- Yaroslavtsev R.N. (SB Russian Acad Sci, Kirensky Inst Phys, Krasnoyarsk 660036, Russia; Fed Res Ctr KSC SB RAS, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia)
- Ladygina V.P. (Fed Res Ctr KSC SB RAS, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia)
- Balaev D.A. (SB Russian Acad Sci, Kirensky Inst Phys, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)
- Pankrats A.I (SB Russian Acad Sci, Kirensky Inst Phys, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)
- Iskhakov R.S. (SB Russian Acad Sci, Kirensky Inst Phys, Krasnoyarsk 660036, Russia)
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