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P+− (blue squares), P−−,++ (black circles), and B (red triangles) vs Fd for samples with different numbers of dislocations N = (a) 48, (b) 96, (c) 144, (d) 192, (e) 240, and (f) 360. The same three regimes, pinned, fluctuating, and reordered, occur for all values of N, but shift to different values of Fd as N changes.
