Salta al contenuto principale
Passa alla visualizzazione normale.

ROSARIO NUNZIO MANTEGNA

Stochastic resonance in magnetic systems described by Preisach hysteresis model

  • Autori: Mantegna, R.; Spagnolo, B.; Testa, L.; Trapanese, M.
  • Anno di pubblicazione: 2005
  • Tipologia: Articolo in rivista (Articolo in rivista)
  • Parole Chiave: Stochastic resonance ; dipoles ; magnetization ; magnetic moment

Abstract

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.

Allegati