D. Spasojevic et al., BARKHAUSEN NOISE - ELEMENTARY SIGNALS, POWER LAWS, AND SCALING RELATIONS, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 54(3), 1996, pp. 2531-2546
We report extensive measurements, with sufficiently large statistics,
of the Barkhausen noise (BN) in the case of the commercial VITROVAC 60
25 X metal glass sample. Applying a very scrutinized numerical procedu
re, we have extracted over one million of the BN elementary signals fr
om the raw experimental data, whereby we made a rather precise estimat
ion of the relevant power law exponents. In conjunction with the exper
imental part of the work, we have recognized a generic shape of a sing
le BN elementary signal (BNES), and we have put forward, without invok
ing any existing model of BN, a simple mathematical expression for BNE
S. Using the proposed expression for BNES in a statistical analysis, w
e have been able to predict scaling relations and an elaborate formula
for the power spectrum. We have also obtained these predictions withi
n the generalized homogeneous function approach to the BNES's probabil
ity distribution function, which we have substantiated by the correspo
nding data collapsing analysis. Finally, we compare all our findings w
ith results obtained within the current experimental and theoretical r
esearch of BN.