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Asymmetric stochasticity of magnetization reversal dynamics in exchange-biased IrMn/CoFe Film
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View: Figures


Image of FIG. 1.
FIG. 1.

(Color online) (a) Hysteresis loop of exchange-biased IrMn/CoFe film measured by the MOMM system. The direction of the backward and forward branch reversal is denoted by the arrows. (b) The domain reversal patterns of IrMn/CoFe film for both forward and backward branches. The color code from red to blue represents the elapsed time from 0 to 6 s after the reversal field was applied. The measurements were carried out at ×500 magnification, corresponding to an observed area of 80 × 64 μm2. The direction of the applied magnetic field is indicates by the arrow.

Image of FIG. 2.
FIG. 2.

(Color online) Probability distributions of the magnetization half-reversal time for both the forward and backward applied fields. The distributions were obtained from more than 100 repeated measurements of the magnetization reversal curves.

Image of FIG. 3.
FIG. 3.

(Color online) The half-reversal time as a function of the applied magnetic field for the backward and forward applied fields. The red solid line represents the linear fit.

Image of FIG. 4.
FIG. 4.

(Color online) (a) A series of six magnetization reversal patterns during backward branch reversal. (b) Distribution of the domain jump size in a log-log scale plot. The linear fit when is also shown as the red solid line.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Asymmetric stochasticity of magnetization reversal dynamics in exchange-biased IrMn/CoFe Film