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Evolution of the polarization reversal current ratios with time, (a) , and (b) . In (a) the current curves with full circles and dashed lines are very close. In (b) the current curves with solid and dashed lines are very close.
Evolution of the polarization and the electric field ratios with time, (a) , and (b) . In (a) the electric field curves are overlayed. In (b) the curves for and are very close.
Polarization profiles during the switching process. Due to symmetrical behavior, only a half part of the particle has been represented for each case and put on the same graph. On the left side, ; on the right side, . The arrows indicate the time evolution.
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