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Reversible and quasireversible information in first-order reversal curve diagrams
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View: Figures


Image of FIG. 1.
FIG. 1.

(Color online) Experimental set of FORCs of a CoFeB nanowire array (nominal , ), measured perpendicular to the nanowire axis (, ). For practical reasons, only one-eighth of the measured curves is shown. Some additional points with are added in order to obtain an extended FORC diagram. The inset presents a zoom on to show the upper branch of the MHL (dashed), along with the initial slope of the FORC (solid).

Image of FIG. 2.
FIG. 2.

(Color online) FORC diagram calculated with the curves in Fig. 1 (irreversible processes only). Negative regions are represented in dark and without border.

Image of FIG. 3.
FIG. 3.

(Color online) Percentage of reversible reversal occurring at of a CoFeB nanowire array, obtained with the curves in Fig. 1.

Image of FIG. 4.
FIG. 4.

(Color online) Comparison of the areas contained between and from FORC diagrams calculated with the curves in Fig. 1 and with different methods. (a) Extended FORC, (b) without additional points, (c) extrapolated FORC, and (d) the same sample but measured with smaller parameters (, , and ). The scale is normalized to fit (c), while higher and smaller values appear, respectively, in white and black.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Reversible and quasireversible information in first-order reversal curve diagrams