Abstract Scope |
Dislocations, as a type of crystallographic defects, contain a few fascinating features such as topological protection, long-range interaction, and the deep connections to various fields in physics such as superconductors and phase transitions. In this presentation, we introduce our theoretical effort by treating a dislocation as a quantum field, aka a "dislon", why and how a classical dislocation shall be quantized, and the qualitatively new electronic and phonon behaviors enabled through the dislocation quantization, such as phonon instabilities beyond defect scattering and novel electronic and phonon phases, supported by recent simulations and experiments. We conclude by explaining the necessity and exciting opportunities the quantum field approach may bring to elucidate the roles classical crystallographic defects may play in materials electronic and thermal properties. |