Vortex Dynamics, Pinning, and Magic Angles on Moiré Patterns
arXiv:2012.09937 · doi:10.1103/PhysRevB.104.024504
Abstract
We examine pinning and dynamics of Abrikosov vortices interacting with pinning centers placed in a moiré pattern for varied moiré 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 moiré patterns.
5 pages, 5 figures
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Cited by in corpus (6)
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- Low frequency electrodynamics in the mixed state of superconducting NbN and a-MoGe films using two-coil mutual inductance technique
- Disorder scattering in classical flat channel transport of particles between twisted magnetic square patterns
- Study of vortex dynamics in an a-MoGe thin film using low-frequency two-coil mutual inductance measurements
- Non-linear vortex dynamics in the mixed state of superconducting a-MoGe and NbN thin films using low-frequency two-coil mutual inductance technique
- Magnetic colloidal single particles and dumbbells on a tilted washboard moire pattern in a precessing external field