journal article·2021-07-15

Vortex dynamics, pinning, and angle-dependent motion on moiré patterns

Wenzhao Li, C. J. O. Reichhardt, B. Jankó, C. Reichhardt

Physical Review B· Volume 104· Issue 2
Publisher page

Abstract

We examine the 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 locking 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 locking 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 particlelike assemblies moving on moir\'e patterns.
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Research context

OpenAlex topics: Physics of Superconductivity and Magnetism · Theoretical and Computational Physics · Magnetic properties of thin films

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Physics, University of Notre Dame, Notre Dame, Indiana 46656, USA

Theoretical Division and Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA

Funding

Los Alamos National Laboratory · U.S. Department of Energy · National Science Foundation

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