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Showing 1–5 of 5 results
Advanced filters: Author: A. Fontcuberta i Morral Clear advanced filters

  • Current strategies for fabricating quantum dots embedded within nanowires suffer from a number of shortcomings. Now, a versatile self-assembly approach is demonstrated for fabricating core–shell GaAs–AlGaAs nanowires with appealing optical properties.

    • M. Heiss
    • Y. Fontana
    • A. Fontcuberta i Morral
    Research
    Nature Materials
    Volume: 12, P: 439-444

  • The light concentrating properties of single p-i-n GaAs nanowires are shown to result in far greater photocurrent densities than expected under one sun illumination. The results suggest that such cells could in principle operate with power conversion efficiencies beyond the Shockley–Queisser limit.

    • Peter Krogstrup
    • Henrik Ingerslev Jørgensen
    • Anna Fontcuberta i Morral
    Research
    Nature Photonics
    Volume: 7, P: 306-310

  • The ability to place perfectly aligned vertical nanowires at chosen positions on a silicon substrate is an important challenge in device fabrication. Here, the authors propose a mechanism to explain self-catalyzed III-V nanowire growth on silicon, providing valuable insights for growing high yield nanowire arrays.

    • J. Vukajlovic-Plestina
    • W. Kim
    • A. Fontcuberta i Morral
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-7

  • Spin waves can provide efficient alternatives to microelectronics in applications such as image processing, but are difficult to realize on the nanoscale. Here, the authors develop a magnonic grating coupler, which allows for the conversion of microwaves to short-wavelength spin waves with large amplitudes.

    • Haiming Yu
    • G. Duerr
    • D. Grundler
    ResearchOpen Access
    Nature Communications
    Volume: 4, P: 1-9

  • Integrating spin waves with microwave circuits is promising for microwave nanoelectronics. Here, Yu et al. demonstrate a reconfigurable microwave-to-magnon transducer by covering yttrium iron garnet with small arrays of tailored magnetic nanodisks, which transmits microwave signals via sub-100-nanometer wavelength spin waves.

    • Haiming Yu
    • O. d’ Allivy Kelly
    • D. Grundler
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-7