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Approaching soft X-ray wavelengths in nanomagnet-based microwave technology

Author

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  • Haiming Yu

    (Technische Universität München
    Fert Beijing Institute, School of Electronic and Information Engineering, Beihang University)

  • O. d’ Allivy Kelly

    (Unité Mixte de Physique, CNRS, Thales, Univ Paris-Sud, Université Paris-Saclay)

  • V. Cros

    (Unité Mixte de Physique, CNRS, Thales, Univ Paris-Sud, Université Paris-Saclay)

  • R. Bernard

    (Unité Mixte de Physique, CNRS, Thales, Univ Paris-Sud, Université Paris-Saclay)

  • P. Bortolotti

    (Unité Mixte de Physique, CNRS, Thales, Univ Paris-Sud, Université Paris-Saclay)

  • A. Anane

    (Unité Mixte de Physique, CNRS, Thales, Univ Paris-Sud, Université Paris-Saclay)

  • F. Brandl

    (Technische Universität München)

  • F. Heimbach

    (Technische Universität München)

  • D. Grundler

    (Technische Universität München
    Laboratory of Nanoscale Magnetic Materials and Magnonics, Institute of Materials, School of Engineering, École Polytechnique Fédérale de Lausanne, STI-IMX-LMGN, Station 17, CH-1015 Lausanne, Switzerland)

Abstract

Seven decades after the discovery of collective spin excitations in microwave-irradiated ferromagnets, there has been a rebirth of magnonics. However, magnetic nanodevices will enable smart GHz-to-THz devices at low power consumption only, if such spin waves (magnons) are generated and manipulated on the sub-100 nm scale. Here we show how magnons with a wavelength of a few 10 nm are exploited by combining the functionality of insulating yttrium iron garnet and nanodisks from different ferromagnets. We demonstrate magnonic devices at wavelengths of 88 nm written/read by conventional coplanar waveguides. Our microwave-to-magnon transducers are reconfigurable and thereby provide additional functionalities. The results pave the way for a multi-functional GHz technology with unprecedented miniaturization exploiting nanoscale wavelengths that are otherwise relevant for soft X-rays. Nanomagnonics integrated with broadband microwave circuitry offer applications that are wide ranging, from nanoscale microwave components to nonlinear data processing, image reconstruction and wave-based logic.

Suggested Citation

  • Haiming Yu & O. d’ Allivy Kelly & V. Cros & R. Bernard & P. Bortolotti & A. Anane & F. Brandl & F. Heimbach & D. Grundler, 2016. "Approaching soft X-ray wavelengths in nanomagnet-based microwave technology," Nature Communications, Nature, vol. 7(1), pages 1-7, September.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms11255
    DOI: 10.1038/ncomms11255
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    Cited by:

    1. H. Merbouche & B. Divinskiy & D. Gouéré & R. Lebrun & A. El Kanj & V. Cros & P. Bortolotti & A. Anane & S. O. Demokritov & V. E. Demidov, 2024. "True amplification of spin waves in magnonic nano-waveguides," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    2. Korbinian Baumgaertl & Dirk Grundler, 2023. "Reversal of nanomagnets by propagating magnons in ferrimagnetic yttrium iron garnet enabling nonvolatile magnon memory," Nature Communications, Nature, vol. 14(1), pages 1-8, December.

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