Suppression of the superconducting critical current of Nb in bilayers of Nb/SrRuO3

Abstract

In bilayers consisting of ferromagnetic and superconducting films, the ferromagnetic film in its domain state induces inhomogeneous distribution of magnetic fields in the superconducting film. When the ferromagnetic film has bubble magnetic domains in a labyrinth structure, it has been found that the pinning of the vortices increases; hence, the critical current of the superconducting film becomes larger. Here we study the effect of parallel ferromagnetic domain structure in Nb/SrRuO3 on the critical current of Nb with current flowing perpendicularly to the domains and find that in this case the ferromagnetic domain structure decreases the critical current.

References in corpus (1)

• Magnetic-domain-controlled vortex pinning in a superconductor/ferromagnet bilayer

Cited by in corpus (8)

• Ubiquitous Superconducting Diode Effect in Superconductor Thin Films
• Nucleation of superconductivity and vortex matter in superconductor - ferromagnet hybrids
• Guiding superconducting vortices by magnetic domain walls
• Evidence for Induced Magnetization in Superconductor-Ferromagnet Hetero-structures: a Scanning Tunnelling Spectroscopy Study
• Tunable phase diagram and vortex pinning in a superconductor-ferromagnet bilayer
• Enhancement of vortex pinning in superconductor/ferromagnet bilayers via angled demagnetization
• Stray field and superconducting surface spin valve effect in La${}_{0.7}$Ca${}_{0.3}$MnO${}_3$/YBa${}_2$Cu${}_3$O${}_{7-\delta }$ bilayers
• On the crystalline structure of orthorhombic SrRuO${}_3$: A benchmark study of DFT functionals