Direct observation of misfit dislocation glide on surfaces.

Academic Article


  • Using scanning tunneling microscopy we have observed thermally induced dislocation glide in monolayer Cu films on Ru(0001) at room temperature. The motion is governed by a Peierls barrier that depends on the detailed structure of the dislocations, in particular upon whether the threading dislocations that terminate them are dissociated or not. Calculations based on the Frenkel-Kontorova model reproduce the threading dislocation structure and provide estimates of the Peierls barrier and dislocation stiffness which are consistent with experiment.
  • Authors

  • de La Figuera, J
  • Pohl, Karsten
  • de La Fuente, OR
  • Schmid, AK
  • Bartelt, NC
  • Carter, CB
  • Hwang, RQ
  • Status

    Publication Date

  • April 23, 2001
  • Has Subject Area

    Published In

    Digital Object Identifier (doi)

    Pubmed Id

  • 11329332
  • Start Page

  • 3819
  • End Page

  • 3822
  • Volume

  • 86
  • Issue

  • 17