Abstract
It is demonstrated that stability criteria derived using elastic stiffness coefficients which govern stress-strain relations at finite deformation give quantitative predictions of crystal instability, as observed in direct molecular dynamics simulations. With the aid of such analysis we show that instabilities can be triggered in succession; as a consequence, the limit of metastability in the superheating of a defect-free crystal can be predicted.
- Received 30 August 1993
DOI:https://doi.org/10.1103/PhysRevLett.71.4182
©1993 American Physical Society