Effect of excitation parameters on the Barkhausen-noise in FINEMET-Type amorphous ribbons

L. Daróczi, G. Eszenyi, Zs Molnár, D. Beke, A. Bükki-Deme, F. Zámborszky

Research output: Contribution to journalArticle

Abstract

Probability frequency spectra of the peak area, energy and width of the Barkhausen noise (BN) signals have been measured versus induction in a narrow induction window during traversing the magnetization loop from negative to positive saturation (and reverse) in Fe(75)Si(15)Nb(3)B(6)Cu(1) amorphous metallic glasses. It was obtained, that the noise power, as the function of the induction, B, showed a wide minimum at B = 0 and two sharp peaks around the knees of the magnetization loop. This can be a quite general feature of soft magnetic materials and can be related to the fact that at around the knees a mechanism, different from the domain motion in a random pinning field operates: new domains are created or existing domains are destroyed. Furthermore, it is also shown that the probability frequency of the duration, area and energy of the peaks are described by power function even far from the B = 0 point, but with higher exponents belonging to the stationary values obtained around B = 0.

Original languageEnglish
Pages (from-to)1237-1242
Number of pages6
JournalMaterials Transactions
Volume55
Issue number8
DOIs
Publication statusPublished - 2014

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ribbons
Magnetization
induction
Soft magnetic materials
Metallic glass
excitation
magnetization
metallic glasses
magnetic materials
exponents
saturation
energy

Keywords

  • Barkhausen-noise
  • Excitation parameters
  • Metallic glass
  • Noise power
  • Statistical analysis

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Effect of excitation parameters on the Barkhausen-noise in FINEMET-Type amorphous ribbons. / Daróczi, L.; Eszenyi, G.; Molnár, Zs; Beke, D.; Bükki-Deme, A.; Zámborszky, F.

In: Materials Transactions, Vol. 55, No. 8, 2014, p. 1237-1242.

Research output: Contribution to journalArticle

Daróczi, L. ; Eszenyi, G. ; Molnár, Zs ; Beke, D. ; Bükki-Deme, A. ; Zámborszky, F. / Effect of excitation parameters on the Barkhausen-noise in FINEMET-Type amorphous ribbons. In: Materials Transactions. 2014 ; Vol. 55, No. 8. pp. 1237-1242.
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