Bridge in micron-sized Bi2Sr2CaCu2O8+y sample act as converging lens for vortices

@article{Puig2021BridgeIM,
  title={Bridge in micron-sized Bi2Sr2CaCu2O8+y sample act as converging lens for vortices},
  author={Joaqu{\'i}n Puig and N'estor Ren'e Cejas Bolecek and Jazm'in Arag'on S'anchez and Moira In'es Dolz and Marcin Konczykowski and Yanina Fasano},
  journal={Physica C: Superconductivity and its Applications},
  year={2021}
}
Abstract We report on direct imaging of vortex matter nucleated in micron-sized Bi 2 Sr 2 CaCu 2 O 8 + y superconducting samples that incidentally present a bridge structure. We find that when nucleating vortices in a field-cooling condition the deck of the bridge acts as a converging lens for vortices. By means of Bitter decoration images allowing us to quantify the enhancement of vortex-vortex interaction energy per unit length in the deck of the bridge, we are able to estimate that the deck… 

Figures from this paper

References

SHOWING 1-10 OF 40 REFERENCES
Vortex penetration into micron-sized Bi 2 Sr 2 CaCu 2 O 8+δ
The onset of vortex penetration into micron-sized Bi 2 Sr 2 CaCu 2 O 8 - Φ disks and squares is studied using local magnetization measurements. The vortex penetration field H p is observed to exceed
Pillars as antipinning centers in superconducting films
Using the nonlinear Ginzburg-Landau theory we study vortex configurations in a superconducting thin film with a square array of pillars in the presence of a uniform applied magnetic field. The
Commensurability and stability in nonperiodic systems.
TLDR
A periodic 2D perturbation is shown to transform the nonperiodic Bragg glass-like structure into an Abrikosov crystal with an effective Debye-Waller factor.
Enhancement of penetration field in vortex matter in mesoscopic superconductors due to Andreev bound states
We study the penetration field $H_{\rm P}$ for vortex nanocrystals nucleated in micron-sized samples with edges aligned along the nodal and anti-nodal directions of the d-wave superconducting
New vortex-matter size effect observed in Bi(2)Sr(2)CaCu(2)O(8 + delta).
TLDR
The magnitude and temperature dependence of R(2D)(c) agree well with Larkin-Ovchinnikov collective pinning theory and it is suggested that this critical length should be equated with the 2D vortex lattice ab-plane correlation length.
Unveiling the vortex glass phase in the surface and volume of a type-II superconductor
Order-disorder transitions between glassy phases are common in nature and yet a comprehensive survey on the entailed structural changes is challenging since the constituents are in the micro-scale.
Vortex matter in superconducting mesoscopic disks: Structure, magnetization, and phase transitions
The dense vortex matter structure and associated magnetization are calculated for type-II superconducting mesoscopic disks. The magnetization exhibits generically first-order phase transitions as the
Effect of sample topology on the critical fields of mesoscopic superconductors
THE superconducting state of a material can be suppressed by either increasing the temperature (T) or applying a magnetic field (H). For bulk samples, the form of the H–T phase boundary is mainly
Influence of edge barriers on vortex dynamics in thin weak-pinning superconducting strips
We introduce a type of vortex entry edge barrier which controls the critical current in a perpendicular magnetic field in thin-film weak-pinning superconducting strips. Measurements of the critical
Phase transitions in individual sub-micrometre superconductors
The properties of a superconductor are expected to change radically when its size becomes comparable to that of the Cooper pairs, the quasiparticles responsible for superconductivity. The effect of
...
1
2
3
4
...