Magnetic emission during austenite-martensite transformation in NizMnGa shape memory alloy

Zoltán Balogh, Lajos Daróczi, Lajos Harasztosi, Dezsö L. Beke, Thomas A. Lograsso, Deborah L. Schlagel

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The magnetic emission signals, accompanying the martensitic transition in Ni 2MnGa magnetic shape memory alloy, are studied. The width (duration) and height (amplitude) distributions of the signals exhibit a power-law behaviour, with exponents α and β respectively. The values of α and β are characteristic of the magnetic noise originating from the transition itself and both have the value of 3.0 ±0.15.

Original languageEnglish
Pages (from-to)631-634
Number of pages4
JournalMaterials Transactions
Volume47
Issue number3
DOIs
Publication statusPublished - Mar 1 2006

Keywords

  • Barkhausen noise
  • Critical exponent
  • Ferromagnetic shape memory
  • Magnetic emission
  • Nickel-manganese-gallium

ASJC Scopus subject areas

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

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