Vortex Dynamics, Pinning, and Magic Angles on Moir\'e Patterns
Superconductivity
2024-04-23 v1 Strongly Correlated Electrons
Abstract
We examine pinning and dynamics of Abrikosov vortices interacting with pinning centers placed in a moir\'e pattern for varied moir\'e lattice angles. We find a series of magic angles at which the critical current shows a pronounced dip corresponding to lattices in which the vortices can flow along quasi-one-dimensional channels. At these magic angles, the vortices move with a finite Hall angle. Additionally, for some lattice angles there are peaks in the critical current produced when the substrate has a quasiperiodic character that strongly reduces the vortex channeling. Our results should be general to a broad class of particle-like assemblies moving on moir\'e patterns.
Cite
@article{arxiv.2012.09937,
title = {Vortex Dynamics, Pinning, and Magic Angles on Moir\'e Patterns},
author = {Wenzhao Li and C. J. O. Reichhardt and B. Jankó and C. Reichhardt},
journal= {arXiv preprint arXiv:2012.09937},
year = {2024}
}
Comments
5 pages, 5 figures