Physics – Condensed Matter – Materials Science
Scientific paper
2012-01-13
Physics
Condensed Matter
Materials Science
3 pages, 6 figures, presented at The European Conference "Physics of Magnetism" (PM'11), June 27 - July 1, 2011, Poznan, Polan
Scientific paper
This work is an an early stage of a larger project aiming at answering the question whether or not the Preisach map is really fingerprinting magnetic materials. More precisely, we are interested whether Preisach model of magnetic hysteresis indeed contains any physics or is just a convenient modeling tool. To this extent we study a very simple mechanical system, thus fully tractable, subjected to the external force. Despite of its simplicity, our model captures all the fundamental features of real magnetic materials, namely their hysteretic behavior, coercivity, remanent magnetization and saturation at high fields. Both the overall shape of major hysteresis loop as well as First Order Reversal Curves (FORC's) are reproduced quite correctly; they are very similar to those observed in magnetic materials. The model essentially consists of a single, spring loaded, rigid and rotative bar with non-zero friction torque. The length of a projection of this bar onto the direction of an external force is identified with magnetization. The friction torque and the spring constant are the only freely adjustable parameters of our model. Here we investigate, and present, their influence on the inferred Preisach maps.
Chyao Amy
Gutowski Marek W.
Markovskyi S.
No associations
LandOfFree
Preisach images of a simple mechanical system 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 Preisach images of a simple mechanical system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preisach images of a simple mechanical system will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-471500