Temperature- and time-dependent Preisach model for a Stoner-Wohlfarth particle system

Author

Stancu, Alexandru ; Spinu, Leonard

Author_Institution

Dept. of Electr., Alexandru Ioan Cuza Univ., Iasi, Romania

Volume

34

Issue

6

fYear

1998

fDate

11/1/1998 12:00:00 AM

Firstpage

3867

Lastpage

3875

Abstract

In this paper, a dynamic (time and temperature dependent) Preisach model is described. In the Preisach plane one uses a double well potential distribution calculated with the Stoner-Wohlfarth model. Both static and dynamic interactions for a ultrafine particulate system are taken into account in order to simulate various magnetization processes, such as: field-cooled (FC), zero field-cooled (ZFC), thermo-remanent magnetization (TRM), magnetic relaxation in applied field (MR), and the major hysteresis loop (MHL) as a function of temperature. The results of the simulations are in good qualitative agreement with experimental data obtained for ferromagnetic ultrafine particulate systems

Keywords

magnetic hysteresis; magnetic particles; magnetic relaxation; magnetisation; remanence; Stoner-Wohlfarth model; double well potential distribution; dynamic Preisach model; ferromagnetic ultrafine particulate system; field cooled magnetization; magnetic relaxation; major hysteresis loop; simulation; temperature dependence; thermo-remanent magnetization; time dependence; zero field cooled magnetization; Atmospheric modeling; Energy barrier; Helium; Magnetic hysteresis; Magnetization processes; Nonlinear dynamical systems; Potential well; Temperature dependence; Transmission line measurements; Viscosity;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.728296

Filename

728296