Physics – Condensed Matter – Materials Science
Scientific paper
2011-06-20
Physics
Condensed Matter
Materials Science
13 pages, 7 figures
Scientific paper
We consider a switching of the magnetic moment with an easy axis anisotropy from an "up" to a "down" direction under the influence of an external magnetic field. The driving field is applied parallel to the easy axis and is continuously swept from a positive to a negative value. In addition, a small constant perpendicular bias field is present. It is shown that while the driving field switches the moment in a conventional way, the perpendicular field creates an admixture of the precessional (ballistic) switching that speeds up the switching process. Precessional contribution produces a non-monotonic dependence of the switching time on the field sweep time with a minimum at a particular sweep time value. We derive an analytic expressions for the optimal point, and for the entire dependence of the switching time on the field sweep time. Our approximation is valid in a wide parameter range and can be used to engineer and optimize of the magnetic memory devices.
No associations
LandOfFree
Analytic treatment of the precessional (ballistic) contribution to the conventional magnetic switching 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 Analytic treatment of the precessional (ballistic) contribution to the conventional magnetic switching, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analytic treatment of the precessional (ballistic) contribution to the conventional magnetic switching will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-256700