Journal
PHYSICAL REVIEW LETTERS
Volume 126, Issue 11, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.126.117205
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Funding
- Singapore National Research Foundation (NRF) NRF-Investigatorship [NRFNRFI2015-04]
- Singapore MOE Academic Research Fund Tier 3 Grant [MOE2018-T3-1-002]
- Swiss National Science Foundation [182652]
- Research Foundation Flanders (FWO)
- University of Antwerp (BOF)
- VSC (Flemish Supercomputer Center) - FWO
- Flemish Government-Department EWI
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This study demonstrates the experimental coupling of chiral magnetism and superconductivity in [IrFeCoPt]/Nb heterostructures, showing the induction of antivortices by the stray field of skyrmions and the unique signatures in magnetization, critical current, and flux dynamics. Furthermore, a thermally tunable Rashba-Edelstein exchange coupling was observed in the isolated skyrmion phase, indicating a path towards controllable topological hybrid materials that have not been achieved to date.
We report experimental coupling of chiral magnetism and superconductivity in [IrFeCoPt]/Nb heterostructures. The stray field of skyrmions with radius approximate to 50 nm is sufficient to nucleate antivortices in a 25 nm Nb film, with unique signatures in the magnetization, critical current, and flux dynamics, corroborated via simulations. We also detect a thermally tunable Rashba-Edelstein exchange coupling in the isolated skyrmion phase. This realization of a strongly interacting skyrmion-(anti)vortex system opens a path toward controllable topological hybrid materials, unattainable to date.
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