Barkhausen noise in disordered strip-like ferromagnets: experiment vs. simulations

TL;DR

This study compares experimental Barkhausen noise data from a metallic glass with simulations of the Random Field Ising Model, demonstrating that with proper parameters, the model accurately reproduces key noise features.

Contribution

The paper shows that the Random Field Ising Model can effectively simulate Barkhausen noise in disordered ferromagnets when parameters are appropriately tuned.

Findings

Model reproduces experimental noise features

Good agreement between experiment and simulation

Validates the use of RFIM for Barkhausen noise studies

Abstract

In this paper, we compare the results obtained from the low-frequency Barkhausen noise recordings performed on a VITROPERM 800 metallic glass sample with the results from the numerical simulations of the Random Field Ising Model systems. We show that when the values of disorder and driving rates of the model systems are suitably chosen, a considerable matching with the experimental results is achieved indicating that the model can reproduce a majority of the Barkhausen noise features.