Title :
Singularities in the AC energy losses in hard magnetic materials
Author :
Asti, Giovanni ; Ghibini, M. ; Solzi, Massimo
Author_Institution :
Dipartimento di Fisica, Parma Univ., Italy
fDate :
9/1/2000 12:00:00 AM
Abstract :
The imaginary part of the reversible susceptibility and its harmonics are measured on hard magnetic materials by the modulation technique in a DC bias field. A singular point is observed in the second harmonic at the anisotropy field. An interpretation is given based on singular point detection approach
Keywords :
harmonics; magnetic anisotropy; magnetic leakage; magnetic susceptibility; magnetic variables measurement; permanent magnets; AC energy loss singularities; AC susceptibility; DC bias field; anisotropy field; hard magnetic materials; imaginary part; magnetometers; modulation technique; permanent magnets; reversible susceptibility; second harmonic; singular point detection approach; Anisotropic magnetoresistance; Barium; Ferrites; Frequency; Magnetic anisotropy; Magnetic field measurement; Magnetic losses; Magnetic materials; Magnetic susceptibility; Perpendicular magnetic anisotropy;
Journal_Title :
Magnetics, IEEE Transactions on
