6533b7d5fe1ef96bd126469c
RESEARCH PRODUCT
Magnetic Stochastic Resonance in systems described by Dynamic Preisach Model
Marco TrapaneseL. Testasubject
Preisach model of hysteresisStochastic modellingStochastic resonancePhysical systemSignalMagnetizationNuclear magnetic resonanceSignal-to-noise ratioStatistical physicsElectrical and Electronic EngineeringNoise strengthPhysicsCondensed matter physicsMathematical analysisResonanceFunction (mathematics)Condensed Matter PhysicsMagnetic hysteresisCircuit resonanceElectric machinesDynamic Preisach modelElectronic Optical and Magnetic MaterialsHysteresisMagnetic resonanceMagnetic deviceHysteresivibrational resonanceSignal amplificationStochastic resonancedescription
Stochastic resonance (SR) is generally considered as an enhancement of the system response for certain finite values of the noise strength. In particular the signal to noise ratio (SNR) and the signal amplification show a maximum as a function of the noise intensity. This effect has been experimentally observed in many physical systems and also in magnetic systems. However, as far as magnetic systems are concerned, the dynamic features of the systems have been neglected and it has been assumed that the typical relaxation time is negligible. However this is clearly a rough approximation. In order to clarify this relation, in this paper we numerically study magnetic stochastic resonance in several magnetic systems described by dynamic Preisach model.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-02-01 | INTERMAG 2006 - IEEE International Magnetics Conference |