Fingerprinting Hysteresis

Details Fingerprinting Hysteresis Fingerprinting Hysteresis

2003-07-08

arxiv.org/abs/cond-mat/0307178v2

Physica B 343, 10 (2004)

Physics

Condensed Matter

Materials Science

4 pages, 5 figures

Scientific paper

10.1016/j.physb.2003.08.051

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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