Attractive interaction between superconducting vortices in tilted magnetic fields

Abstract

Many practical applications of high T${}_c$ superconductors involve layered materials and magnetic fields applied on an arbitrary direction with respect to the layers. When the anisotropy is very large, Cooper pair currents can circulate either within or perpendicular to the layers. Thus, tilted magnetic fields lead to intertwined lattices of Josephson and Abrikosov vortices, with quantized circulation across and within layers, respectively. Transport in such intertwined lattices has been studied in detail, but direct observation and manipulation of vortices remains challenging. Here we present magnetic force microscopy experiments in tilted magnetic fields in the extremely quasi-two dimensional superconductor $B{i}_{2}S{r}_{2}CaC{u}_2{O}_8$. We trigger Abrikosov vortex motion in between Josephson vortices, and find that Josephson vortices in different layers can be brought on top of each other. Our measurements suggest that intertwined lattices in tilted magnetic fields can be intrinsically easy to manipulate thanks to the mutual interaction between Abrikosov and Josephson vortices.

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Cited by in corpus (8)

• Perspective: Challenges and Transformative Opportunities in Superconductor Vortex Physics
• Strong in-plane magnetic field induced reemergent superconductivity in the van der Waals heterointerface of NbSe2 and CrCl3
• Observation of a gel of quantum vortices in a superconductor at very low magnetic fields
• All-optical generation of Abrikosov vortices by the Inverse Faraday Effect
• Angular magnetic-field dependence of vortex matching in pinning lattices fabricated by focused or masked helium ion beam irradiation of superconducting YBa${}_2$Cu${}_3$O${}_{7-\delta }$ thin films
• Phase diagram of superconducting vortex ratchet motion in a superlattice with noncentrosymmetry
• Nucleation and Arrangement of Abrikosov Vortices in Hybrid Superconductor-Ferromagnetic Nanostructure
• Scanning Tunneling Microscopy in high vectorial magnetic fields