Extended Data Fig. 6: Ruling out artifacts from the coarsening effect and chemical defects. | Nature Physics

Extended Data Fig. 6: Ruling out artifacts from the coarsening effect and chemical defects.

From: Kibble–Zurek mechanism of Ising domains

Extended Data Fig. 6: Ruling out artifacts from the coarsening effect and chemical defects.

One 0.5°C/h-cooled (green data point) and one 20°C/h-cooled (blue data point) BiTeI crystal with an additional coarsening at 400°C for 300 hours are plotted with regularly-collected KZM data. No significant changes in domain density are found after excessive coarsening. An additional post-annealing (40°C/h, pink data point) can convert a previously slowly-cooled (0.5°C/h) crystal to a state with a high domain density, which illustrates polar domains are not pinned by chemical defects.

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