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Fingerprinting Hysteresis

Helmut G. Katzgraber·Gary Friedman·G. T. Zimanyi
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Abstract

We test the predictive power of first-oder reversal curve (FORC) diagrams using simulations of random magnets. In particular, we compute a histogram of the switching fields of the underlying microscopic switching units along the major hysteresis loop, and compare to the corresponding FORC diagram. We find qualitative agreement between the switching-field histogram and the FORC diagram, yet differences are noticeable. We discuss possible sources for these differences and present results for frustrated systems where the discrepancies are more pronounced.

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Helmut G. Katzgraber, Gary Friedman, G. T. Zimanyi. 2004-02-04. Fingerprinting Hysteresis. https://doi.org/10.1016/j.physb.2003.08.051

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