Shape of a Barkhausen pulse
arXiv:cond-mat/0507296 · doi:10.1016/j.jmmm.2003.12.1063
Abstract
The average shape of the pulse in Barkhausen noise has been recently proposed as a tool to compare models and experiments. We compute theoretically the pulse shape of Barkhausen noise in a model describing the motion of a domain wall in an effective Brownian potential. In this framework, the pulse shape is related to the properties of the excursion of a random process in a potential. We record the Barkhausen noise in polycristalline materials, and compare the pulse shape with the one predicted by the domain wall model.
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