Title :
Magnetization reversal in SmCo5 nanoparticles
Author :
Majetich, Sara A. ; Kirkpatrick, E.M.
Author_Institution :
Carnegie Mellon Univ., Pittsburgh, PA, USA
fDate :
9/1/1997 12:00:00 AM
Abstract :
DC demagnetization and magnetic viscosity measurements were made on SmCo5 nanoparticles prepared by ball milling. The field dependence of the magnetic viscosity and irreversible susceptibility, χirr, were found to be identical. With appropriate normalization, χirr(H) for different temperatures scales to a universal function of the reduced magnetic field, H/Hc
Keywords :
cobalt alloys; ferromagnetic materials; magnetic particles; magnetic susceptibility; magnetisation reversal; nanostructured materials; samarium alloys; SmCo5; SmCo5 nanoparticles; ball milling; field dependence; irreversible susceptibility; magnetic viscosity measurements; magnetization reversal; Ball milling; Energy barrier; Magnetic field measurement; Magnetic materials; Magnetization reversal; Nanoparticles; Saturation magnetization; Scanning electron microscopy; Temperature; Viscosity;
Journal_Title :
Magnetics, IEEE Transactions on
