Movie S2.

In situ TEM observation of dislocation nucleation near the markers due to stress concentration.

Cyclic deformation leads to defect healing and strengthening of small-volume metal crystals

Zhang-Jie Wang, Qing-Jie Li, Yi-Nan Cui, Zhan-Li Liu, Evan Ma, Ju Li, Jun Sun, Zhuo Zhuang, Ming Dao, Zhi-Wei Shan, and Subra Suresh