Preisach images of a simple mechanical system
M.W. Gutowski, Amy Chyao, and S. Markovskyi

TL;DR
This study uses a simple mechanical system to explore whether Preisach maps truly reflect physical properties of magnetic materials or are just effective models, by analyzing hysteresis behavior and Preisach maps.
Contribution
It demonstrates that a basic mechanical model can replicate key features of magnetic hysteresis and influences of parameters on Preisach maps, questioning their physical interpretability.
Findings
Model reproduces hysteresis, coercivity, and saturation.
Preisach maps are influenced by friction torque and spring constant.
Mechanical analogy captures features of real magnetic materials.
Abstract
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…
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Taxonomy
TopicsMagnetic Properties and Applications · Force Microscopy Techniques and Applications · Piezoelectric Actuators and Control
