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Paper detail

Humble planar defects in SiGe nanopillars

We report a new \{001\} planar defect found in SiGe nanopillars. The defect structure, determined by atomic resolution electron microscopy, matches the Humble defect model proposed for diamond. We also investigated several possible variants of the Humble structure using first principles calculations and found that the one lowest in energy was also in best agreement with the STEM images. The pillar composition has been analyzed with electron energy loss spectroscopy, which hints at how the defect is formed. Our results show that the structure and formation process of defects in nanostructured group IV semiconductors can be different from their bulk counterparts.

preprint2021arXivOpen access
Hongbin YangShang RenSobhit SinghEmily M. TurnerKevin S. JonesPhilip E. BatsonDavid VanderbiltEric Garfunkel
cond-mat.mtrl-sci
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Hongbin YangShang RenSobhit SinghEmily M. TurnerKevin S. JonesPhilip E. BatsonDavid VanderbiltEric Garfunkel

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