Estimate of the Anisotropy Field of Strontium Ferrite from Powders Using the Stoner-Wohlfarth Model

Authors :: D. B. Rodrigues
Sérgio Antônio Romero
Marcos Flavio de Campos
Source :: Materials Science Forum. 881:128-133
Publication Year :: 2016
Publisher :: Trans Tech Publications, Ltd., 2016.
Abstract: The isotropic Stoner-Wohlfarth model can be applied for the determination of the anisotropy field in powders. Samples of strontium ferrite - SrFe12O19 – were measured in Vibrating Sample Magnetometer (VSM). By means of the fitting of the first quadrant of the hysteresis curve the anisotropy field was estimated as 19-20 kOe for the SrFe12O19 phase. The main advantage of the method is its simplicity, because compacting or sintering of the powder samples is not necessary

Subjects :: Strontium
Materials science
Condensed matter physics
Magnetometer
Mechanical Engineering
Isotropy
chemistry.chemical_element
Sintering
Condensed Matter Physics
law.invention
Nuclear magnetic resonance
chemistry
Mechanics of Materials
law
Stoner–Wohlfarth model
Magnet
Ferrite (magnet)
General Materials Science
Anisotropy

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