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Showing 1–5 of 5 results
Advanced filters: Author: Sergei Urazhdin Clear advanced filters

  • Dynamical effects driven by pure spin currents in magnetic nanostructures have so far been limited to spatially confined excitations, limiting potential magnonic applications. Here, the authors demonstrate the generation of coherent propagating spin waves in NiFe films induced by pure spin currents.

    • Vladislav E. Demidov
    • Sergei Urazhdin
    • Sergej O. Demokritov
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-6

  • Nonlinear damping enhancement imposes strict limitations on the operation and efficiency of magnetic nano-devices. Here the authors show that nonlinear damping can be controlled by the ellipticity of magnetization precession, which provides a route for the implementation of efficient active spintronic and magnonic devices driven by spin current.

    • Boris Divinskiy
    • Sergei Urazhdin
    • Vladislav E. Demidov
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-7

  • The dynamical processes associated with the magnetization of a material can be drastically altered by the application of a spin current. This study now demonstrates the feasibility of selectively exciting coherent auto-oscillation modes in magnetic nanostructures.

    • Vladislav E. Demidov
    • Sergei Urazhdin
    • Sergej O. Demokritov
    Research
    Nature Materials
    Volume: 11, P: 1028-1031

  • A spin-polarized current induces a spin torque on the magnetization of a ferromagnetic film, which according to theory leads to spin-wave emissions. These spin waves have now been observed with a mapping technique that shows a highly directional emission. The results are of key importance to understanding the physics of spin waves and their possible use in spintronic devices.

    • Vladislav E. Demidov
    • Sergei Urazhdin
    • Sergej O. Demokritov
    Research
    Nature Materials
    Volume: 9, P: 984-988

  • Photoluminescence from plasmonic nanostructures exhibits diverse wavelength dependent nonlinear behaviors with debated origins. Here, authors use plasmonic gap mode resonators with precise nanoscale confinement to show this nonlinear emission can become dominated by non-Fermi carrier contributions.

    • Robert Lemasters
    • Manoj Manjare
    • Hayk Harutyunyan
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-8