Observation of a gel of quantum vortices in a superconductor at very low magnetic fields

Abstract

A gel consists of a network of particles or molecules formed for example using the sol-gel process, by which a solution transforms into a porous solid. Particles or molecules in a gel are mainly organized on a scaffold that makes up a porous system. Quantized vortices in type II superconductors mostly form spatially homogeneous ordered or amorphous solids. Here we present high-resolution imaging of the vortex lattice displaying dense vortex clusters separated by sparse or entirely vortex-free regions in $\beta$-Bi${}_2$Pd superconductor. We find that the intervortex distance diverges upon decreasing the magnetic field and that vortex lattice images follow a multifractal behavior. These properties, characteristic of gels, establish the presence of a novel vortex distribution, distinctly different from the well-studied disordered and glassy phases observed in high-temperature and conventional superconductors. The observed behavior is caused by a scaffold of one-dimensional structural defects with enhanced stress close to the defects. The vortex gel might often occur in type-II superconductors at low magnetic fields. Such vortex distributions should allow to considerably simplify control over vortex positions and manipulation of quantum vortex states.

References in corpus (54)

• Two Dimensional Atomic Crystals
• Superconducting proximity effect and Majorana fermions at the surface of a topological insulator
• New directions in the pursuit of Majorana fermions in solid state systems
• Search for Majorana fermions in superconductors
• The Flux-Line Lattice in Superconductors
• Evidence for Majorana bound state in an iron-based superconductor
• Majorana mode in vortex core of Bi2Te3/NbSe2 topological insulator-superconductor heterostructure
• Scanning nano-SQUID with single electron spin sensitivity
• Type-1.5 Superconductors
• Dynamic Fracture in Single Crystal Silicon
• Nanoscale thermal imaging of dissipation in quantum systems
• Semi-Meissner state and neither type-I nor type-II superconductivity in multicomponent systems
• Imaging of super-fast dynamics and flow instabilities of superconducting vortices
• Limits on Superconductivity-Related Magnetization in Sr${}_2$RuO${}_4$ and PrOs${}_4$Sb${}_{12}$ from Scanning SQUID Microscopy
• Visualization of superparamagnetic dynamics in magnetic topological insulators
• Remarkable effects of disorder on superconductivity of single atomic layers of lead on silicon
• Topologically protected surface states in a centrosymmetric superconductor beta-PdBi2
• Microscopic theory of type-1.5 superconductivity in multiband systems
• Quantum Magnetomechanics with Levitating Superconducting Microspheres
• Type-1.5 Superconducting State from an Intrinsic Proximity Effect in Two-Band Superconductors
• Probing dynamics and pinning of single vortices in superconductors at nanometer scales
• The Ginzburg-Landau theory in application
• Experimental Observation of Topological Superconductivity and Majorana Zero Modes on beta-Bi2Pd Thin Films
• Intrinsic atomic scale modulations of the superconducting gap of 2H-NbSe2
• The Suprafroth (Superconducting Froth)
• Is the term "type-1.5 superconductivity" warranted by Ginzburg-Landau theory?
• Enhancement of long range correlations in a 2D vortex lattice by incommensurate 1D disorder potential
• Strongly Enhanced Vortex Pinning by Conformal Crystal Arrays
• Scanning SQUID microscopy of vortex clusters in multiband superconductors
• Probing magnetic interactions between Cr adatoms on the $\beta$-Bi${}_2$Pd superconductor
• Superconducting Vortex Lattices for Ultracold Atoms
• Superconductivity at 5.4 K in $\beta$-Bi${}_2$Pd
• Deterministic creation and braiding of chiral edge vortices
• Emergent nanoscale superparamagnetism at oxide interfaces
• Magnetic field dependence of the density of states in the multiband superconductor $\beta$-Bi${}_2$Pd
• Observation of Half-Quantum Flux in Unconventional Superconductor $\beta$-Bi${}_2$Pd
• Morphology of the Superconducting Vortex Lattice in Ultra-Pure Niobium
• Ordered, disordered and coexistent stable vortex lattices in NbSe_2 single crystals
• Single gap superconductivity in beta-Bi2Pd
• Ground states of one and two fractional vortices in long Josephson 0-kappa-junctions
• Strong pinning and vortex energy distributions in single crystalline Ba(Fe1-xCox)2As2
• Soft vortex matter in a type-I/type-II superconducting bilayer
• Electron-phonon coupling and pairing mechanism in $\beta$--Bi${}_2$Pd centrosymmetric superconductor
• Disorder, critical currents, and vortex pinning energies in isovalently substituted BaFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$
• Vortex images on Ba{1-x}KxFe2As2 observed directly by the magnetic force microscopy
• Detecting the Exchange Phase of Majorana Bound States in a Corbino Geometry Topological Josephson Junction
• Chemical doping and high pressure studies of layered beta-PdBi2 single crystals
• Strain-induced inter-vortex interaction and vortex lattices in tetragonal superconductors
• Elasticity-driven interaction between vortices in type-II superconductors
• Conformal Vortex Crystals
• Collective vortex phases in periodic plus random pinning potential
• Vortex-induced strain and magnetization in type-II superconductors
• Vortex matter freezing in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_8$ samples with a very dense distribution of columnar defects
• Attractive interaction between superconducting vortices in tilted magnetic fields

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• All-optical generation of Abrikosov vortices by the Inverse Faraday Effect
• Superconductivity in a disordered metal with Coulomb interactions
• Non-Gaussian tail in the force distribution: A hallmark of correlated disorder in the host media of elastic objects
• Finite-size effects in hyperuniform vortex matter
• Anti-hyperuniform diluted vortex matter induced by correlated disorder
• CNN-Based Vortex Detection in Atomic 2D Bose Gases in the Presence of a Phononic Background
• Unconventional magnetization in the multiphase superconductor PdBi${}_2$
• Hyperuniform patterns nucleated at low temperatures: Insight from vortex matter imaged in unprecedentedly large fields-of-view