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Showing 1–6 of 6 results
Advanced filters: Author: V. A. Shklovskij Clear advanced filters

  • A spectral study on a ferromagnet/superconductor heterostructure reveals the interaction between the spin-wave excitations in a magnetically ordered system (magnons) and the magnetic flux quanta formed in a superconductor (fluxons).

    • O. V. Dobrovolskiy
    • R. Sachser
    • A. V. Chumak
    Research
    Nature Physics
    Volume: 15, P: 477-482

  • To realize ultra-fast dynamics of superconducting vortices one needs to overcome the practical issue of flux-flow instability (FFI). Here, Dobrovolskiy et al. demonstrate ultra-fast vortex motion at 10-15 km/s velocity in a Nb-C superconductor where the FFI is described by the edge-controlled FFI model.

    • O. V. Dobrovolskiy
    • D. Yu Vodolazov
    • M. Huth
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-10

  • Superconductivity can be quenched at large dc currents and it can be stimulated by a high-power microwave ac stimulus. Here, the authors investigate the dc- and microwave-driven quenching in a Nb superconductor in the presence of vortices and the factors contributing to the competition between the stimulation and quenching of the superconducting state.

    • O. V. Dobrovolskiy
    • C. González-Ruano
    • F. G. Aliev
    ResearchOpen Access
    Communications Physics
    Volume: 3, P: 1-11

  • Emission of electromagnetic waves is expected when superconducting vortices cross sample edges, but such a radiation has not been observed so far. Here, Dobrovolskiy et al. evidence the electromagnetic radiation from vortices crossing the layers of a Mo/Si superlattice, where the emission spectra can be tuned by dc bias current and coarsely by the in-plane magnetic field.

    • O. V. Dobrovolskiy
    • V. M. Bevz
    • M. Huth
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-9

  • Topological defects such as vortices and phase slips in a superconductor system manifest spatial patterns and dynamics that are closely associated with the geometry of the system. Here, the authors investigate the topological transitions between vortex-chain and phase-slip transport regimes in curved superconductor nanostructures as a function of an applied magnetic field and how they impact on the magnetic-field-voltage and current-voltage characteristics.

    • R. O. Rezaev
    • E. I. Smirnova
    • V. M. Fomin
    ResearchOpen Access
    Communications Physics
    Volume: 3, P: 1-8