Displacement vector and energy of a screw dislocation in a Lennard-Jones amorphous solid

P. Chaudhari, Paul J. Steinhardt

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

We show that screw dislocations can be stabilized in a Lennard-Jones amorphous solid. Both the energy and the Eshel by twist are in accord with continuum theory. As in a crystal there is a threshold of the initial displacement vector above which a jump in the final displacement (Burgers) vector is observed. However, unlike a crystal, the motion of a screw dislocation or shear displacement exceeding approximately 0.8 of an atom diameter results in changes in density of the material.

Original languageEnglish (US)
Pages (from-to)25-30
Number of pages6
JournalPhilosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties
Volume46
Issue number1
DOIs
StatePublished - Jan 1 1982
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Materials Science(all)
  • Condensed Matter Physics
  • Physics and Astronomy (miscellaneous)
  • Metals and Alloys

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