Interaction of Skyrmions and Pearl Vortices in Superconductor-Chiral Ferromagnet Heterostructures
| Autor: | Anatoly F. Volkov, Ilya Eremin, Samme M. Dahir |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Physics
Superconductivity Condensed matter physics Magnetic moment Strongly Correlated Electrons (cond-mat.str-el) Condensed Matter - Superconductivity Skyrmion High Energy Physics::Phenomenology General Physics and Astronomy FOS: Physical sciences Coupling (probability) Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 01 natural sciences Magnetic field Vortex Superconductivity (cond-mat.supr-con) Condensed Matter - Strongly Correlated Electrons Ferromagnetism Magnet Condensed Matter::Superconductivity 0103 physical sciences 010306 general physics |
| DOI: | 10.48550/arxiv.1810.09908 |
| Popis: | We investigate a hybrid heterostructure with magnetic skyrmions (Sk) inside a chiral ferromagnet interfaced by a thin superconducting film via an insulating barrier. The barrier prevents the electronic transport between the superconductor and the chiral magnet, such that the coupling can only occur through the magnetic fields generated by these materials. We find that Pearl vortices (PV) are generated spontaneously in the superconductor within the skyrmion radius, while anti-Pearl vortices (\(\overline{\mathrm{PV}}\)) compensating the magnetic moment of the Pearl vortices are generated outside of the Sk radius, forming an energetically stable topological hybrid structure. Finally, we analyze the interplay of skyrmion and vortex lattices and their mutual feedback on each other. In particular, we argue that the size of the skyrmions will be greatly affected by the presence of the vortices offering another prospect of manipulating the skyrmionic size by the proximity to a superconductor. Comment: 6 pages, 4 figures (accepted version for Phys. Rev. Lett.) |
| Databáze: | OpenAIRE |
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