Atomic-scale imaging of asymmetric Lomer dislocation cores at the Ge/Si(001) heterointerface

J. N. Stirman, Peter Crozier, David Smith, F. Phillipp, G. Brill, S. Sivananthan

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The imaging of Lomer edge dislocations formed at Ge/Si(001) hetero-interfaces is discussed. They are imaged at 1.25-MeV atomic-resolution electron microscope. It is found that the dislocations were located close to the mean position of the interface and they were primarily asymmetrical. To validate the image interpretation, image simulations are used for the purpose.

Original languageEnglish (US)
Pages (from-to)2530-2532
Number of pages3
JournalApplied Physics Letters
Issue number14
StatePublished - Apr 5 2004


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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