Quantitative Analysis of Deformation Around a Nanoindentation in GaN by STEM Diffraction

  • K K McLaughlin
  • W J Clegg
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 120)


The lattice rotations underneath a nanoindentation in GaN are measured from the energy-filtered convergent beam electron diffraction patterns generated by scanning transmission electron microscopy (STEM). These rotations reveal a kink band not visible in STEM high angle annular dark field images. Furthermore, the diffraction data allows the lowest-energy configuration of dislocations associated with the kink band rotations to be estimated.


Scanning Transmission Electron Microscopy Lattice Rotation Gallium Nitride Kink Band High Angle Annular Dark Field 
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Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  • K K McLaughlin
    • 1
  • W J Clegg
    • 1
  1. 1.Department of Materials Science and MetallurgyUniversity of CambridgeCambridgeUK

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