Zero field cooled / field cooled susceptibilities

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The discussion focuses on understanding zero-field-cooled (ZFC) and field-cooled (FC) susceptibilities in magnetic nanoparticles within a liquid carrier. The Stoner–Wohlfarth model and Chantrell calculations are being utilized to model these curves, but the user is encountering difficulties with the calculations. They seek assistance or references to clarify the model and improve their understanding. The conversation remains open for additional insights or new findings related to the topic. This inquiry highlights the complexities of modeling magnetic properties in nanoparticles.
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I'm studying magnetic properties of nanoparticles in a liquid carrier and trying to understand better zero-field-cooled/field-cooled curves. We use the Stoner–Wohlfarth model and Chantrell calculations to model ZFC/FC curves but I'm having some issues to follow the calculation.

Does anyone understands the model and can help or knows any reference that can help with that?
 
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