Understanding the formation of persistent slip bands is a long standing challenge of dislocation theory. In this paper, we present a two-dimensional continuum theory of dislocations in which elastic anharmonicity effects are taken into account. It is shown that in contrast with the continuum theory based on linear elasticity, incorporating a nonlinear elastic energy term may lead to the instability of the homogeneous dislocation distribution.
|Journal||Physical Review B - Condensed Matter and Materials Physics|
|Publication status||Published - Aug 20 2007|
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics