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Electron Image Series Reconstruction of Twin Interfaces in InP Superlattice Nanowires

  • Martin Ek (a1), Magnus T. Borgström (a2), Lisa S. Karlsson (a3), Crispin J.D. Hetherington (a3) and L. Reine Wallenberg (a1)...
Abstract

The twin interface structure in twinning superlattice InP nanowires with zincblende structure has been investigated using electron exit wavefunction restoration from focal series images recorded on an aberration-corrected transmission electron microscope. By comparing the exit wavefunction phase with simulations from model structures, it was possible to determine the twin structure to be the ortho type with preserved In-P bonding order across the interface. The bending of the thin nanowires away from the intended ⟨110⟩ axis could be estimated locally from the calculated diffraction pattern, and this parameter was successfully taken into account in the simulations.

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Corresponding author
Corresponding author. E-mail: martin.ek@polymat.lth.se
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Microscopy and Microanalysis
  • ISSN: 1431-9276
  • EISSN: 1435-8115
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