Micromagnetic Barkhausen emission analysis of Tb/sub 0.3/Dy/sub 0.7/Fe/sub 2/ under the action of an alternating field excitation

Micromagnetic Barkhausen emission analysis of Tb/sub 0.3/Dy/sub 0.7/Fe/sub 2/ under the action of an alternating field excitation

The ternary alloy Tb/sub 0.3/Dy/sub 6.7/Fe/sub 2/ 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 Barkhause...

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Veröffentlicht in:IEEE transactions on magnetics 1992-09, Vol.28 (5), p.3153-3155
Hauptverfasser: Sipahi, L.B., Schulze, M.P., Jiles, D.C., Greenough, R.D.
Format: Artikel
Sprache:eng
Schlagworte:
Anisotropic magnetoresistance
Iron alloys
Magnetic analysis
Magnetic anisotropy
Magnetic materials
Magnetostriction
Micromagnetics
Perpendicular magnetic anisotropy
Signal analysis
Temperature
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Zusammenfassung:The ternary alloy Tb/sub 0.3/Dy/sub 6.7/Fe/sub 2/ 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.< >
ISSN:0018-9464
1941-0069
DOI:10.1109/20.179742