Nature Communications (Apr 2019)

Unraveling the dislocation core structure at a van der Waals gap in bismuth telluride

  • D. L. Medlin,
  • N. Yang,
  • C. D. Spataru,
  • L. M. Hale,
  • Y. Mishin

DOI
https://doi.org/10.1038/s41467-019-09815-5
Journal volume & issue
Vol. 10, no. 1
pp. 1 – 8

Abstract

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The atomic level core structure of dislocations in non-metallic materials such as chalcogenides remains elusive. Here, the authors combine atomic-resolution electron microscopy and simulations to image a dislocation core in bismuth telluride and show it spreads because of weak bonding between atomic layers.