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RESEARCH PRODUCT

Stochastic resonance in magnetic systems described by Preisach hysteresis model

Rosario N. MantegnaL. TestaBernardo SpagnoloMarco Trapanense

subject

Physicsdipolesmagnetic momentMagnetic momentStochastic resonanceNumerical analysisGeneral Physics and AstronomymagnetizationMagnetic hysteresisMagnetizationsymbols.namesakeHysteresisGaussian noisesymbolsMagnetic nanoparticlesStatistical physicsStochastic resonance

description

We present a numerical study of stochastic resonance in magnetic systems described by Preisach hysteresis model. It is shown that stochastic resonance occurs in these systems. Specifically, the signal-to-noise ratio sSNRd and the signal amplification sSAd present a maximum as a function of noise intensity. We also found that the hysteresis loops, dynamically described by the system, are strongly modified near the maxima of SNR and of SA.

yearjournalcountryeditionlanguage
2005-05-15Journal of Applied Physics
https://doi.org/10.1063/1.1856276