While the Born elastic stability criteria are well known for cubic crystals, there is some confusion in the literature about the form they should take for lower-symmetry crystal classes. Here we present closed form necessary and sufficient conditions for elastic stability in all crystal classes, as a concise and pedagogical reference to stability criteria in noncubic materials.
Physical Review B
- Pub Date:
- December 2014
- General theory;
- Condensed Matter - Materials Science;
- Condensed Matter - Statistical Mechanics
- Phys. Rev. B 90, 224104 (2014)