Enhanced pinning and proliferation of matching effects in a superconducting film with a Penrose array of magnetic dots

Abstract

The vortex dynamics in superconducting films deposited on top of a five-fold Penrose array of magnetic dots is studied by means of transport measurements. We show that in the low pinning regime (demagnetized dots) a few periodic and aperiodic matching features coexist. In the strong pinning regime (magnetized dots) a richer structure of unforeseen periodic and aperiodic vortex patterns appear giving rise to a clear enhancement of the critical current in a broader field range. Possible stable vortex configurations are determined by molecular dynamics simulations.

References in corpus (8)

• Guided vortex motion in superconductors with a square antidot lattice
• Critical Currents in Quasiperiodic Pinning Arrays: Chains and Penrose Lattices
• Enhanced vortex pinning by a composite antidot lattice in a superconducting Pb film
• Flux pinning by regular arrays of ferromagnetic dots
• Vortex-antivortex dynamics and field-polarity-dependent flux creep in hybrid superconductor/ferromagnet nanostructures
• Suppression of matching field effects by splay and pinning energy dispersion in YBa_2Cu_3O_7 with columnar defects
• Lock-in to commensurate states induced by a periodic array of nanoscale anti-dots in Nb superconductor
• Flux pinning in a superconducting film by a regular array of magnetic dots

Cited by in corpus (32)

• Experimental observation of directional locking and dynamical ordering of colloidal monolayers driven across quasiperiodic substrates
• Strongly Enhanced Vortex Pinning by Conformal Crystal Arrays
• Enhancing the Critical Current of a Superconducting Film in a Wide Range of Magnetic Fields with a Conformal Array of Nanoscale Holes
• Symmetry-induced giant vortex state in a superconducting film with a Penrose array of magnetic pinning centers
• Dynamical Ordering and Directional Locking For Particles Moving Over Quasicrystalline Substrates
• Enhancement of pinning properties of superconducting thin films by graded pinning landscapes
• Magnetic flux pinning in superconductors with hyperbolic-tesselation arrays of pinning sites
• Physical properties of weak-coupling quasiperiodic superconductors
• Effect of hexagonal patterned arrays and defect geometry on the critical current of superconducting films
• Moving Vortex Phases, Dynamical Symmetry Breaking, and Jamming for Vortices in Honeycomb Pinning Arrays
• Enhancing the critical current in quasiperiodic pinning arrays below and above the matching magnetic flux
• Suppression of dissipation in Nb thin films with triangular antidot arrays by random removal of pinning sites
• Commensurability Effects at Nonmatching Fields for Vortices in Diluted Periodic Pinning Arrays
• Dynamics of self-organized driven particles with competing range interaction
• Wideband microwave measurements in Nb/Pd${}_{84}$Ni${}_{16}$/Nb structures and comparison with thin Nb films
• Pinning, Ordering, and Dynamics of Vortices in Conformal Crystal and Gradient Pinning Arrays
• Ultradense Tailored Vortex Pinning Arrays in Superconducting YBa${}_2$Cu${}_3$O${}_{7-\delta }$ Thin Films Created by Focused He Ion Beam Irradiation for Fluxonics Applications
• Enhancing superconducting critical current by randomness
• Collective vortex phases in periodic plus random pinning potential
• Pattern formation in vortex matter with pinning and frustrated inter-vortex interactions
• Pinning, Flux Diodes, and Ratchets for Vortices Interacting with Conformal Pinning Arrays
• Supercurrent Distribution in Real-Space and Anomalous Paramagnetic Response in a Superconducting Quasicrystal
• Reconfigurable pinwheel artificial-spin-ice and superconductor hybrid device
• Direct visualization of magnetic vortex pinning in superconductors
• Enhancing the effective critical current density in a Nb superconducting thin film by cooling in an inhomogeneous magnetic field
• Unconventional superfluidity of superconductivity on Penrose lattice
• Vortex Transport and Pinning Effectiveness in Conformal Pinning Arrays
• The importance of thermal gradients on the vortex dynamics and magnetic behavior of mesoscopic superconducting samples
• Nanostructured Superconductors
• Vortex kinks in superconducting films with periodically modulated thickness
• Pinning of Vortices by impurities in Unconventional superconductors
• Magnetic nonreciprocity in a hybrid device of asymmetric artificial spin-ice-superconductors