Elastic interaction of surface steps: effect of atomic-scale roughness.

@article{Kukta2002ElasticIO,
  title={Elastic interaction of surface steps: effect of atomic-scale roughness.},
  author={R. V. Kukta and Alejandro Peralta and Demitris A. Kouris},
  journal={Physical review letters},
  year={2002},
  volume={88 18},
  pages={186102}
}
Elastic interactions of atomic steps can greatly impact surface morphology. Recent atomistic calculations and experimental observations find the standard dipole model of steps is valid only for very large step separations. In this Letter, a new model is presented that displays remarkable agreement with atomistic predictions for step separations larger than just a few step heights. It is shown that the interaction energy of steps exhibits a novel intermediate-ranged behavior and that, for… CONTINUE READING