Journal
JOURNAL OF APPLIED PHYSICS
Volume 112, Issue 7, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4756957
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- Ontario Centres of Excellence
- ARISE Technologies
- NSERC
- McMaster University
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Unambiguous identification of anti-phase boundaries (APBs) in heteroepitaxial films of GaSb grown on Si has been so far elusive. In this work, we present conventional transmission electron microscopy (TEM) diffraction contrast imaging using superlattice reflections, in conjunction with convergent beam electron diffraction analysis, to determine a change in polarity across APBs in order to confirm the presence of anti-phase disorder. In-depth analysis of anti-phase disorder is further supported with atomic resolution high-angle annular dark-field scanning transmission electron microscopy. The nature of APBs in GaSb is further elucidated by a comparison to previous results for GaAs epilayers grown on Si. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4756957]
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