An X-ray view of traveling dislocations in diamond (IMAGE)
Caption
This X-ray radiographic image – similar to a medical X-ray, but taken at ultrafast speed with an X-ray laser – shows shock waves traveling through a diamond crystal. The initial wave is elastic. The plastic wave follows, creating defects in the material called dislocations that propagate through the material faster than the speed of sound. The arrow shows the path and direction of one dislocation, which has left a linear defect called a stacking fault in its wake. The dislocation itself is seen at the tip of the arrow. Other stacking faults can be seen fanning out from the site of the laser shock.
Credit
K. Katagiri/Stanford University
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