Magnetic hysteresis properties and rotational hysteresis losses of synthetic stress-controlled titanomagnetite (Fe2.4Ti0.6O4) particles-I. Magnetic hysteresis properties

Magnetic hysteresis and domain structure

2014 A brief survey is made of some of the problems involved in the development of experimental methods of obtaining information on the domain processes involved in the low field magnetization of polycrystalline materials. LE JOURNAL DE PHYSIQUE ET LE RADIUM TOME 20, FÉVRIER 1959, This paper represents an attempt to summarise briefly some of the problems involved in the development of an unders...

Effects of surface anisotropy on hysteresis in fine magnetic particles.

We solve numerically the dissipative Landau-LifshitzGilbert equations to consider hysteresis in fine magnetic particles. Finite size effects are studied for two models with uniaxial anisotropy — bulk random axis and surface anisotropy only. It is demonstrated that the latter model introduces considerable effects for small enough particles when the coupling to the anisotropy is equal or greater ...

The coercive force and rotational hysteresis of elongated ferromagnetic particles

2014 The coercive force of an infinite ferromagnetic cylinder is calculated as a function of the radius and of the inclination of the axis to the applied field. For this calculation it is assumed that only curling and rotation in unison take place ; and that whenever the curling is associated with a discontinuous jump, the magnetization is brought to the lower energy state given by Stoner and W...

Models of Hysteresis in Magnetic Cores

A new method of obtaining physical information about a system of fme fenite powder, from the hysteresis experienced by a ferromagnetic core as it dissipates energy in an RLC circuit is presented. The models of the magnetization processes are classified in three categories: physical, phenomenological and mixed. Hodgdon developed a purely mathematical model that was tested on magnetization proces...

High Frequency Hysteresis Characterization of Magnetic Nanoparticles