Title :
Micromagnetic Barkhausen emission analysis of Tb0.3Dy 0.7Fe2 under the action of an alternating field excitation
Author :
Sipahi, L.B. ; Schulze, M.P. ; Jiles, D.C. ; Greenough, R.D.
Author_Institution :
Ames Lab., Iowa State Univ., IA, USA
fDate :
9/1/1992 12:00:00 AM
Abstract :
The ternary alloy Tb0.3Dy6.7Fe2 has aroused great interest because of its minimum anisotropy among the alloys of dysprosium, terbium, and iron at room temperature, which allows high magnetostrictions to be obtained at low field strengths. In the present investigation, the Barkhausen effect emissions of this material have been analyzed with different techniques, including the waveforms, RMS voltages, and pulse height spectra of the Barkhausen signals
Keywords :
Barkhausen effect; dysprosium alloys; ferromagnetic properties of substances; iron alloys; magnetostriction; terbium alloys; RMS voltages; Tb0.3Dy6.7Fe2; Terfenol-D; alternating field excitation; high magnetostrictions; micromagnetic Barkhausen emission analysis; pulse height spectra; waveforms; Anisotropic magnetoresistance; Iron alloys; Magnetic analysis; Magnetic anisotropy; Magnetic materials; Magnetostriction; Micromagnetics; Perpendicular magnetic anisotropy; Signal analysis; Temperature;
Journal_Title :
Magnetics, IEEE Transactions on
