Quasistatic hysteresis loops of magnetic nanoparticles in a rotating magnetic field

Quasistatic hysteresis loops of magnetic nanoparticles in a rotating magnetic field

•For a nanoparticle in rotating magnetic field magnetic hysteresis exists in a restricted range of magnetic field amplitudes.•The nanoparticle coercive force is obtained as a function of magnetic field amplitude.•Quasistatic hysteresis loops are calculated for randomly oriented assembly of non inter...

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Veröffentlicht in:Journal of magnetism and magnetic materials 2020-04, Vol.499, p.166260, Article 166260
Hauptverfasser: Usov, N.A., Gubanova, E.M., Epshtein, N.B., Belyaeva, G.A., Oleinikov, V.A.
Format: Artikel
Sprache:eng
Schlagworte:
Amplitudes
Anisotropy
Coercivity
Hysteresis loops
Magnetic domains
Magnetic fields
Magnetic nanoparticles
Magnetism
Magnetization reversal
Nanoparticles
Numerical simulation
Quasistatic hysteresis loops
Rotating magnetic field
Rotation
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Beschreibung
Zusammenfassung:•For a nanoparticle in rotating magnetic field magnetic hysteresis exists in a restricted range of magnetic field amplitudes.•The nanoparticle coercive force is obtained as a function of magnetic field amplitude.•Quasistatic hysteresis loops are calculated for randomly oriented assembly of non interacting nanoparticles. Quasistatic hysteresis loops of a single-domain magnetic nanoparticle with uniaxial anisotropy in a rotating magnetic field have been calculated. Magnetic hysteresis is shown to exist only in a limited range of reduced magnetic field amplitudes, 0.5 
ISSN:0304-8853
1873-4766
DOI:10.1016/j.jmmm.2019.166260