Loss separation for dynamic hysteresis in magnetic thin films

Details Loss separation for dynamic hysteresis in magnetic thin films Loss separation for dynamic hysteresis in magnetic thin films

2006-09-11

arxiv.org/abs/cond-mat/0609255v1

Physics

Condensed Matter

Materials Science

4 pages, 6 figures

Scientific paper

10.1103/PhysRevLett.97.257203

We develop a theory for dynamic hysteresis in ferromagnetic thin films, on the basis of the phenomenological principle of loss separation. We observe that, remarkably, the theory of loss separation, originally derived for bulk metallic materials, is applicable to disordered magnetic systems under fairly general conditions regardless of the particular damping mechanism. We confirm our theory both by numerical simulations of a driven random--field Ising model, and by re--examining several experimental data reported in the literature on dynamic hysteresis in thin films. All the experiments examined and the simulations find a natural interpretation in terms of loss separation. The power losses dependence on the driving field rate predicted by our theory fits satisfactorily all the data in the entire frequency range, thus reconciling the apparent lack of universality observed in different materials.

Affiliated with

Also associated with

No associations

Rating

Loss separation for dynamic hysteresis in magnetic thin films does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Loss separation for dynamic hysteresis in magnetic thin films, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Loss separation for dynamic hysteresis in magnetic thin films will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-25389