Supersonic dynamics of guided magnetic flux quanta

Abstract

The dynamics of Abrikosov vortices in superconductors is usually limited to vortex velocities $v\simeq 1$ km/s above which samples abruptly transit into the normal state. In the Larkin-Ovchinnikov framework, near the critical temperature this is because of a flux-flow instability triggered by the reduction of the viscous drag coefficient due to the quasiparticles leaving the vortex cores. While the existing instability theories rely upon a uniform spatial distribution of vortex velocities, the measured (mean) value of $v$ is always smaller than the maximal possible one, since the distribution of $v$ never reaches the $\delta$-functional shape. Here, by guiding magnetic flux quanta at a tilt angle of $15^{\circ }$ with respect to a Co nanostripe array, we speed up vortices to supersonic velocities. These exceed $v$ in the reference as-grown Nb films by almost an order of magnitude and are only a factor of two smaller than the maximal vortex velocities observed in superconductors so far. We argue that such high $v$ values appear in consequence of a collective dynamic ordering when all vortices move in the channels with the same pinning strength and exhibit a very narrow distribution of $v$. Our findings render the well-known vortex guiding effect to open prospects for investigations of ultrafast vortex dynamics.

arXiv comment6 pages, 4 figures

References in corpus (36)

• Skyrmion Lattice in a Chiral Magnet
• Circuit Quantum Electrodynamics: Coherent Coupling of a Single Photon to a Cooper Pair Box
• Proximity effects in superconductor-ferromagnet heterostructures
• The Flux-Line Lattice in Superconductors
• Demonstration of Two-Qubit Algorithms with a Superconducting Quantum Processor
• Superconducting nanowire single-photon detectors: physics and applications
• Imaging of super-fast dynamics and flow instabilities of superconducting vortices
• Focused electron beam induced deposition meets materials science
• Theory of single photon detection by 'dirty' current-carrying superconducting strip based on the kinetic equation approach
• Evidence of a nonequilibrium distribution of quasiparticles in the microwave response of a superconducting aluminium resonator
• Vortex assisted mechanism of photon counting in superconducting nanowire single photon detector revealed by external magnetic field
• Spin-wave phase inverter upon a single nanodefect
• Microwave emission from superconducting vortices in Mo/Si superlattices
• Speed limit to the Abrikosov lattice in mesoscopic superconductors
• Quasiparticle scattering time in superconducting films: from dirty to clean limit
• Post-growth purification of Co nanostructures prepared by focused electron beam induced deposition
• Abrikosov fluxonics in washboard nanolandscapes
• Moving Vortex Phases, Dynamical Symmetry Breaking, and Jamming for Vortices in Honeycomb Pinning Arrays
• Dual cut-off dc-tunable microwave low-pass filter on superconducting Nb microstrips with asymmetric nanogrooves
• Dissipative superconductivity: a universal non-equilibrium state of nanowires
• Tunable magnetism on the lateral mesoscale by post-processing of Co/Pt heterostructures
• AC-driven microwave loss modulation in a fluxonic metamaterial
• Magnon radiation by moving Abrikosov vortices in ferromagnetic superconductors and superconductor-ferromagnet multilayers
• Magnus-Induced Dynamics of Driven Skyrmions on a Quasi-One-Dimensional Periodic Substrate
• Radiofrequency generation by coherently moving fluxons
• Pinning effects on self-heating and flux-flow instability in superconducting films near $T_c$
• The onset, evolution and magnetic braking of vortex lattice instabilities in nanostructured superconducting films
• Dynamic Vortex Phases and Pinning in Superconductors with Twin Boundaries
• Magnetization reversal assisted by half antivortex states in nanostructured circular cobalt disks
• Transverse vortex commensurability effect and sign change of the Hall voltage in superconducting YBa${}_2$Cu${}_3$O${}_{7-\delta }$ thin films with a nanoscale periodic pinning landscape
• Pinning effects on flux flow instability in epitaxial Nb thin films
• Orientational Ordering, Buckling, and Dynamic Transitions for Vortices Interacting with a Periodic Quasi-One Dimensional Substrate
• Thermally driven inhibition of superconducting vortex avalanches
• DC-assisted microwave quenching of YBa2Cu3O7-δ coplanar waveguide to a highly dissipative state
• Reduction of microwave loss by mobile fluxons in grooved Nb films
• Interplay of flux guiding and Hall effect in Nb films with nanogrooves

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