Dispersion Relations for Dislocation Modes and their Sensitivity to the Lattice Structure
High Energy Physics - Theory
2025-01-20 v2 Materials Science
High Energy Physics - Phenomenology
Abstract
In this letter we show that the dispersion relation for the dynamical modes of dislocations ("dislons") in solids is sensitive to the lattice symmetries. In particular, we show that in the IR, the dislon dispersion relation develops a logarithmic dependence on momenta for approximately isotropic lattices whereas for non-isotropic lattices, the linear term dominates. The renormalization group flows for dislocation tension are shown to be distinct for isotropic and anisotropic lattices.
Keywords
Cite
@article{arxiv.2212.10587,
title = {Dispersion Relations for Dislocation Modes and their Sensitivity to the Lattice Structure},
author = {Jin-Yun Lin and Shashin Pavaskar and Ira Z. Rothstein},
journal= {arXiv preprint arXiv:2212.10587},
year = {2025}
}
Comments
The contribution from phonons to the dynamics of the dislocation modes has been included in the replacement. An author has been added