Quantized dislocations
Name
1808.07777.pdf
Description
Submitted version
Size
2.88 MB
Format
Adobe PDF
Checksum (MD5)
78f14991a5a0e1a7abc4c9b258780d6c
Author(s)
Li, Mingda
Date Issued
2019
Journal
Journal of Physics Condensed Matter
Publisher
IOP Publishing
Version
Original manuscript
Abstract
© 2019 IOP Publishing Ltd. A dislocation, just like a phonon, is a type of atomic lattice displacement but subject to an extra topological constraint. However, unlike the phonon which has been quantized for decades, the dislocation has long remained classical. This article is a comprehensive review of the recent progress on quantized dislocations, aka the 'dislon' theory. Since the dislon utilizes quantum field theory to solve materials defects problems, we adopt a pedagogical approach to facilitate understanding for both materials science and condensed matter communities. After introducing a few preliminary concepts of dislocations, we focus on the necessity and pathways of dislocation's quantization in great detail, followed by the interaction mechanism between the dislon and materials electronic and phononic degrees of freedom. We emphasize the formality, the new phenomena, and the predictive power. Imagine the leap from classical lattice wave to quantized phonon; the dislon theory may open up vast opportunities to compute dislocated materials at a full quantum many-body level.
MIT Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1088/1361-648X/AAF6E1
