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Skyrmion-(Anti)Vortex Coupling in a Chiral Magnet-Superconductor Heterostructure

Published inPhysical Review Letters, vol. 126, no. 117205
Publication date2021
Abstract

We report experimental coupling of chiral magnetism and superconductivity in [IrFeCoPt]/Nb heterostructures. The stray field of skyrmions with radius ≈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.

Keywords
  • Skyrmions
  • Vortices
  • Superconductivity
Research group
Citation (ISO format)
PETROVIĆ, A. P. et al. Skyrmion-(Anti)Vortex Coupling in a Chiral Magnet-Superconductor Heterostructure. In: Physical Review Letters, 2021, vol. 126, n° 117205. doi: 10.1103/PhysRevLett.126.117205
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ISSN of the journal0031-9007
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Creation03/23/2021 10:53:00 AM
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