Movie S2.

Crack healing in the HDA state of a 0.9 M NaK tartrate solution in a polycarbonate capillary during the transition from the HDA to the LDA state. (A) Cracks induced in the sample. The sample is rotated by 360° at 85 K to show cracks induced inside. The frame rate used for recording is 7.5 fps and video playback speed is 15 fps. (B) Crack healing inside the HDA sample during warming (from 85 to 160 K). Note that crack healing occurs noticeably above 120 K, which is 35 K lower than in the LDA state (Movie S1). The image frames are recorded every 5 K, and video playback speed is 2 fps. (C) Cracks in the sample in the middle of warming. The sample is rotated by 360° at 135 K to show crack healing inside. Note that the cracks observed at 85 K are considerably healed. (D) The sample after warming. The sample is rotated by 360° at 160 K to show crack healing inside. Note that the cracks are completely healed.