Au surface dislocation

In situ TEM movie of a (001) gold terrace viewed along a <110> direction parallel to the terrace surface. It is recorded with a speed of 20 frames per second in the spherical aberration-corrected Titan at room temperature. At t=0:10, the 3 atomic columns on top merge with the row of column below it and a dislocation is formed. Atomic column at the right side of the top layer start to disppear. At t=2:08 the dislocation disappears by ejected one atomic column in the viewing direction (dislocation line direction).

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