Vacancy Clustering in Dislocation-Free High-Purity Germanium
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DOI: 10.1007/s11664-020-08260-1
Abstract: A germanium crystal of high purity was grown in H2 with a maximum dislocation density of 3000 cm−2, which was estimated by white beam x-ray topography. Due to a dynamical diffraction effect, the topographs revealed… read more here.
Keywords: germanium; vacancy; dislocation; dislocation free ... See more keywords
In-situ observation of the initiation of plasticity by nucleation of prismatic dislocation loops
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DOI: 10.1038/s41467-020-15775-y
Abstract: The elastic-to-plastic transition during the deformation of a dislocation-free nanoscale volume is accompanied by displacement bursts associated with dislocation nucleation. The dislocations that nucleate during the so-called “pop-in” burst take the form of prismatic dislocation… read more here.
Keywords: microscopy; dislocation; dislocation loops; dislocation free ... See more keywords