Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1803513 | Journal of Magnetism and Magnetic Materials | 2008 | 4 Pages |
Abstract
The phenomenon of magnetoacoustic emission (MAE) has been ascribed usually to one of two origins: either (1) motion of non-180° domain walls or (2) creation or annihilation of domains. In this paper, we present strong evidence for the argument that the only origin for MAE is motion of non-180° domain walls. The proof is evident as a result of measurements of zero MAE for a wide range of stress in the isotropic zero magnetostrictive polycrystalline alloy of iron with 6.5% silicon. We also explain why it was that the alternative origin was proposed and how the data in that same experiment can be reinterpreted to be consistent with the non-180° wall motion origin.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
B. Augustyniak, M.J. Sablik, F.J.G. Landgraf, D.C. Jiles, M. Chmielewski, L. Piotrowski, A.J. Moses,