Guiding superconducting vortices by magnetic domain walls

Abstract

We demonstrate a unique prospect for inducing anisotropic vortex pinning and manipulating the directional motion of vortices using the stripe domain patterns of a uniaxial magnetic film in a the superconducting/ferromagnetic hybrid. Our observations can be described by a model, which considers interactions between magnetic charges of vortices and surface magnetic charges of domains resulting in the enhanced pinning of vortices on domain walls.

arXiv comment12 pages, 6 figures

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• Observation of the magnetic domain structures in Cu${}_{0,47}$Ni${}_{0,53}$ thin films at low temperatures
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• Planar superconductor/ferromagnet hybrids: Anisotropy of resistivity induced by magnetic templates
• Hysteretic magnetic pinning and reversible resistance switching in High-Tc superconductor/ferromagnet multilayers
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• Effect of ferromagnetic film thickness on magnetoresistance of thin-film superconductor-ferromagnet hybrids
• Mesoscale phase separation of skyrmion-vortex matter in chiral magnet-superconductor heterostructures
• Reverse-domain superconductivity in superconductor-ferromagnet hybrids: effect of a vortex-free channel on the symmetry of I-V characteristics
• Superconducting/magnetic three state nanodevice for memory and reading applications
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• Tunable phase diagram and vortex pinning in a superconductor-ferromagnet bilayer
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• Enhancement of vortex pinning in superconductor/ferromagnet bilayers via angled demagnetization
• Crossover between different regimes of inhomogeneous superconductivity in planar superconductor-ferromagnet hybrids
• Strong Enhancement of the Critical Current at the Antiferromagnetic Transition in ErNi2B2C Single Crystals
• Different approaches to generate matching effects using arrays in contact with superconducting films
• Memory effects on the current induced propagation of spin textures in NdCo${}_5$/Ni${}_8$Fe${}_2$ bilayers
• Flow and Tilt-Induced Orientation of the Moving Vortex Lattice in Amorphous NbGe Superconducting Thin Films
• Sudden Magnetization Drops in S/F bilayered Structures
• Localization of superconductivity in superconductor-electromagnet hybrids
• Enhancement of critical current density in superconducting/magnetic multi-layers with slow magnetic relaxation dynamics and large magnetic susceptibility
• Magnetic order and disorder in nanomagnets probed by superconducting vortices