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Modeling of viscosity phenomena in models of hysteresis with local memory

P. ANDREI1, A. STANCU2,* , A. ADEDOYIN1

Affiliation

  1. Department of Electrical and Computer Engineering, Florida State University and Florida A&M University, Tallahassee, FL 32310, USA
  2. Faculty of Physics, “Alexandru Ioan Cuza” University, Iasi, 700506, Romania

Abstract

Magnetic viscosity phenomena are analyzed in the framework of various models of hysteresis with local history by using the Monte Carlo technique. Numerical results related to the decay of the magnetization as of function of time as well as to the viscosity coefficient are presented. It is shown that a logt - type dependence of the average value of the magnetization can be qualitatively predicted even in the framework of simplified models of hysteresis, such as the Jiles-Atherton and Hodgdon models. These models have only local memory and are computationally much more efficient than models with global memory like Preisach-type models..

Keywords

Jiles-Atherton model, Hodgdon model, Aftereffect, Magnetic hysteresis, Magnetic viscosity.

Submitted at: March 15, 2006
Accepted at: May 18, 2006

Citation

P. ANDREI, A. STANCU, A. ADEDOYIN, Modeling of viscosity phenomena in models of hysteresis with local memory, Journal of Optoelectronics and Advanced Materials Vol. 8, Iss. 3, pp. 988-990 (2006)