A spring-block model for Barkhausen noise

Details A spring-block model for Barkhausen noise A spring-block model for Barkhausen noise

2004-07-15

arxiv.org/abs/cond-mat/0407389v1

Physics

Condensed Matter

Soft Condensed Matter

Revtex, 8 pages, 6 figures

Scientific paper

10.1088/0965-0393/13/8/010

A simple mechanical spring-block model is introduced for studying magnetization phenomena and in particularly the Barkhausen noise. The model captures and reproduces the accepted microscopic picture of domain wall movement and pinning. Computer simulations suggest that this model is able to reproduce the main characteristics of hysteresis loops and Barkhausen jumps. In the thermodynamic limit the statistics of the obtained Barkhausen jumps follows several scaling laws, in qualitative agreement with the experimental results. The simplicity of the model and the invoked mechanical analogies makes it attractive for computer simulations and pedagogical purposes.

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