Geometrically driven reversible solid-liquid phase transition at the atomic scale.

Atomic-resolution observation of the liquid-solid phase transition within a geometrically confined nanocluster provides fundamental insights into heterogeneous nucleation mechanisms.

Atomic-resolution observation of the liquid-solid phase transition within a geometrically confined nanocluster provides fundamental insights into heterogeneous nucleation mechanisms. In this work, using in situ transmission electron microscopy, we directly control and observe a…