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. Author manuscript; available in PMC: 2020 Sep 18.
Published in final edited form as: Nature. 2020 Mar 18;579(7799):375–378. doi: 10.1038/s41586-020-2082-6

Fig. 4. Simulated grain boundary phase transition at finite temperature.

Fig. 4

a, MD simulation cell with open surfaces of a Σ19b (178) [11-1] tilt GB viewed along the tilt axis. The domino phase is highlighted in red, the pearl phase in blue. b, Close up of the right-side phase transition with indication of the grain boundary phase junction (line defect, green), separating the two GB phases. c, Magnified view of the line defect and phase coexistence of domino and pearl phase. d, Experimental HAADF-STEM image of the symmetric GB phase transition shown in Fig. 1b. The scale bar is 1 nm.