Title :
AC magnetic properties of FeCo nanocomposites
Author :
Giri, Anit K. ; Chowdary, Krishna M. ; Humfeld, Keith D. ; Majetich, Sara A.
Author_Institution :
Dept. of Phys., Carnegie Mellon Univ., Pittsburgh, PA, USA
fDate :
9/1/2000 12:00:00 AM
Abstract :
Here we report the AC magnetic properties of soft magnetic nanocomposites made from compaction of Fe10Co90 nanoparticles. The permeability is constant for low frequencies, but drops off sharply above a characteristic frequency fc. Above fc the coercivity rises steeply and peaks. The characteristic frequency is found to increase linearly with temperature
Keywords :
cobalt alloys; coercive force; ferromagnetic materials; iron alloys; magnetic particles; magnetic permeability; nanostructured materials; soft magnetic materials; AC magnetic properties; Fe10Co90; Fe10Co90 nanoparticles; FeCo nanocomposites; characteristic frequency; coercivity; compaction; low frequencies; permeability; soft magnetic nanocomposites; temperature dependence; Coercive force; Compaction; Frequency; Iron; Magnetic properties; Nanocomposites; Nanoparticles; Permeability; Soft magnetic materials; Temperature;
Journal_Title :
Magnetics, IEEE Transactions on