Spin-Wave Spectroscopy and Magnetostructural Studies of Co Nanogranular Composites

Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций

Конференция: International Symposium on Physics of Materials (ISPMA); Charles Univ, Fac Math & Phys, Prague, CZECH REPUBLIC; Charles Univ, Fac Math & Phys, Prague, CZECH REPUBLIC

Год издания: 2018

Идентификатор DOI: 10.12693/APhysPolA.134.623

Ключевые слова: Angular velocity, Communication satellites, Data handling, Image resolution, Interpolation, Orbits, Remote sensing, Scanning, Complex configuration, Earth remote sensing, High resolution remote sensing, High resolution satellite imagery, Initial condition, Angular velocity, Communication satellites, Data handling, Image resolution, Interpolation, Orbits, Remote sensing, Scanning, Complex configuration, Earth remote sensing, High resolution remote sensing, High resolution satellite imagery, Initial condition

Аннотация: Nanogranular Co-SiO2, and Co-CaF2 films are investigated using ferromagnetic resonance and magnetic measurements. The spectrum of standing spin-wave has been registered in the perpendicular experiment configuration for all types of films with the magnetic granules content above 52 vol.%. The dependences of resonance fields H-r of spin modes on the mode number squared H-r(n(2)) are non-linear. Such behavior is supposed to be the result of the fluctuations of magnetic parameters (the magnetization and the ferromagnetic exchange coupling) in nanocomposite films. A comparison between the magnetic properties of Co-SiO2 granular films and Co-CaF2 films is carried out. The surface anisotropy value K-s of Co-SiO2 films is evaluated from the surface resonance modes of spin-wave resonance spectra as 3.5 x 10(-4)

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Издание

Журнал: ACTA PHYSICA POLONICA A

Выпуск журнала: Vol. 134, Is. 3

Номера страниц: 623-626

ISSN журнала: 05874246

Место издания: WARSAW

Издатель: POLISH ACAD SCIENCES INST PHYSICS

Авторы

  • Denisova E.A. (Fed Res Ctr KSC SB RAS, Inst Phys, Akademgorodok 50,Bldg 38, Krasnoyarsk, Russia; Siberian Fed Univ, Krasnoyarsk, Russia)
  • Komogortsev S.V. (Fed Res Ctr KSC SB RAS, Inst Phys, Akademgorodok 50,Bldg 38, Krasnoyarsk, Russia)
  • Iskhakov R.S. (Fed Res Ctr KSC SB RAS, Inst Phys, Akademgorodok 50,Bldg 38, Krasnoyarsk, Russia)
  • Chekanova L.A. (Fed Res Ctr KSC SB RAS, Inst Phys, Akademgorodok 50,Bldg 38, Krasnoyarsk, Russia)
  • Kalinin Yu. E. (Voronezh State Tech Univ, Voronezh, Russia)
  • Sitnikov A.V. (Voronezh State Tech Univ, Voronezh, Russia)

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