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Magnetization reversal in co-precipitated cobalt ferrite

Cornejo, D.R ; Medina-Boudri, A ; Bertorello, H.R ; Matutes-Aquino, J

Journal of Magnetism and Magnetic Materials, 2002, Vol.242, pp.194-196 [Periódico revisado por pares]

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  • Título:
    Magnetization reversal in co-precipitated cobalt ferrite
  • Autor: Cornejo, D.R ; Medina-Boudri, A ; Bertorello, H.R ; Matutes-Aquino, J
  • Assuntos: Magnetization Reversal ; Magnetic Viscosity ; Cobalt Ferrite ; Physics
  • É parte de: Journal of Magnetism and Magnetic Materials, 2002, Vol.242, pp.194-196
  • Descrição: A study about the magnetic viscosity and magnetization reversal in co-precipitated cobalt ferrite was carried out. Measurements of direct current demagnetization reversible M rev and irreversible M irr magnetization as well as magnetic viscosity S η were performed at room temperature along the demagnetization curve for different applied fields H ap (0>H ap >−7 kOe) . From these data M rev ( M irr ) H i curves were built. The experimental results show a minimum in the M rev ( M irr ) H i curves and a non-proportionality between S η and χ irr , suggesting two different contributions to the reversal magnetization during the demagnetization process.
  • Idioma: Inglês

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