1. Large Barkhausen discontinuities in Co‐based amorphous wires with negative magnetostriction
- Author
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Kyushu Institute of Technology, Tobata, Kitakyushu 804, Japan, Electrical and Computer Engineering Department, Carnegie‐Mellon University, Pittsburgh, Pennsylvania 15213, Royal Institute of Technology, S‐100 Stockholm, Sweden, Yamasaki, J., Humphrey, F. B., Mohri, K., Kawamura, H., Takamure, H., Mälmhäll, R., Kyushu Institute of Technology, Tobata, Kitakyushu 804, Japan, Electrical and Computer Engineering Department, Carnegie‐Mellon University, Pittsburgh, Pennsylvania 15213, Royal Institute of Technology, S‐100 Stockholm, Sweden, Yamasaki, J., Humphrey, F. B., Mohri, K., Kawamura, H., Takamure, H., and Mälmhäll, R.
- Abstract
type:Journal Article, Magnetic properties, such as domain patterns and anisotropy, were measured for negative magnetostrictive Co-Si-B amorphous wires exhibiting large Barkhausen discontinuities and the results are compared to those of Fe-Si-B wires with positive magnetostriction. The Co-based wire was found to have a bamboolike domain structure at the wire surface. It was also shown that the amorphous wires prepared by the in-water quenching technique store tensile stress in the radial direction. The magnetostrictive anisotropy due to residual stress will produce an axial component of magnetization in conjunction with the two-dimensional geometry of wires making both Co- and Fe-based wires exhibit large Barkhausen discontinuities along the axis of the wire., source:http://www.aip.org, source:https://doi.org/10.1063/1.340585
- Published
- 2017