Does the magnetostriction control the acoustic emission?

It is shown that the acoustic emission (AE) activity in polycrystalline YIG:Mn and Ni-Zn ferrites is proportional to the hysteresis losses, and increases with grain size, but cannot be related to the magnetostriction λ s contrary to the current theory of AE. Our interpretation attributes AE to the d...

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Bibliographic Details
Published inJournal of magnetism and magnetic materials Vol. 83; no. 1; pp. 217 - 218
Main Authors Guyot, M., Merceron, T., Cagan, V.
Format Journal Article Conference Proceeding
LanguageEnglish
Published Amsterdam Elsevier B.V 1990
Elsevier Science
Subjects
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Magnetic properties and materials
Physics
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Summary:It is shown that the acoustic emission (AE) activity in polycrystalline YIG:Mn and Ni-Zn ferrites is proportional to the hysteresis losses, and increases with grain size, but cannot be related to the magnetostriction λ s contrary to the current theory of AE. Our interpretation attributes AE to the domain wall creation/annihilation process.
ISSN:0304-8853
DOI:10.1016/0304-8853(90)90491-8