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Research Group Nanoscaled Magnonic Hybrids

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    2026

  1. Nonlinear frequency shift and bistability of magnon-polarons
    Kevin Künstle, Matthias Wagner, Philipp Knaus, Yannik Kunz, Ephraim Spindler, Katharina Lasinger, Matthias R. Schweizer, Philipp Pirro, John F. Gregg, Mathias Weiler
    arXiv.2605.22157

    2. 2025

  2. Ratchet motion of magnetic skyrmions driven by surface acoustic sawtooth waves
    Philipp Schwenke*, Ephraim Spindler, Vitaliy I. Vasyuchka, Alexandre Abbass Hamadeh, Philipp Pirro, and Mathias Weiler
    Phys. Rev. B 112, 214409 (2025)
    arXiv.2503.09506

  3. Magnon-polaron control in a surface magnetoacoustic wave resonator
    Kevin Künstle, Yannik Kunz, Tarek Moussa, Katharina Lasinger, Kei Yamamoto, Philipp Pirro, John F Gregg, Akashdeep Kamra, Mathias Weiler
    Nature Communications 16, 10116 (2025)
    arXiv.2506.09717

  4. Efficient spin-wave excitation by surface acoustic waves in ultra-low damping YIG/ZnO-heterostructures
    Yannik Kunz, Julian Schüler, Finlay Ryburn, Kevin Künstle, Michael Schneider, Katharina Lasinger, Yangzhan Zhang, Philipp Pirro, John Gregg, Mathias Weiler
    PHYSICAL REVIEW APPLIED 24, 014043 (2025)
    arXiv.2503.11203

  5. Surface Acoustic Wave/Spin Wave Coupling Behaviour of ScAlN/SI Based SAW Devices at Cryogenic Temperatures
    Ioana Zdru, Claudia Nastase, Andrei Florescu, George Boldeiu, Daniele Narducci, Monica Nedelcu, Dan Vasilache, Alexandra Nicoloiu, Christoph Adelman, Adrian Dinescu, Mathias Weiler, Florin Ciubotaru, Philipp Pirro, Alexandru Müller
    IEEE conference paper , (2025)

    6. 2024

  6. Injection locking in DC-driven spintronic vortex oscillators via surface acoustic wave modulation
    R. Moukhader, D. R. Rodrigues, A. Riveros, A. Koujok, G. Finocchio, P. Pirro, A. Hamadeh
    J. Appl. Phys. 136, 183901 (2024)
    arXiv.2410.24045

  7. Parametric Excitation and Instabilities of Spin Waves driven by Surface Acoustic Waves
    M. Geilen, A. Hamadeh, R. Verba, A. Nicoloiu, D. Narducci, A. Dinescu, M. Ender, M. Mohseni, F. Ciubotaru, M. Weiler, A. Müller, B. Hillebrands, C. Adelmann, P. Pirro
    Adv. Physics Res. 2400086, (2024)
    arXiv.2201.04033

  8. Interaction of acoustic waves with spin waves using a GHz operating GaN/Si SAW device with a Ni/NiFeSi layer between its IDTs
    I. Zdru, F. Ciubotaru, C. Nastase, A. Florescu, A. A. Hamadeh, M. Geilen, A. Nicoloiu, G. Boldeiu, D. Vasilache, S. Iordanescu, M. Nedelcu, D. Narducci, M. Ciornei, C. Adelmann, A. Dinescu, M. Weiler, P. Pirro, A. Müller
    IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control 72, 30 (2024)

  9. Coherent Surface Acoustic Wave–Spin Wave Interactions Detected by Micro-Focused Brillouin Light Scattering Spectroscopy
    Y. Kunz, M. Küß, M. Schneider, M. Geilen, P. Pirro, M. Albrecht, and M. Weiler
    Appl. Phys. Lett. 124, 152403 (2024)
    arXiv.2311.16688

    10. 2023

  10. Amplification and frequency conversion of spin waves using acoustic waves
    Morteza Mohseni, Abbass Hamadeh, Moritz Geilen, Philipp Pirro
    IEEE Transactions on Nanotechnology 22, 806 (2023)
    arXiv.2302.10614

  11. Resonant excitation of vortex gyrotropic mode via surface acoustic waves
    A. Koujok, A. Riveros, D. R. Rodrigues, G. Finocchio, M. Weiler, A. Hamadeh, P. Pirro
    Appl. Phys. Lett. 123, 132403 (2023)
    arXiv.2309.04987

  12. Symmetry and Nonlinearity of Spin Wave Resonance Excited by Focused Surface Acoustic Waves
    P. J. Shah, D. A. Bas, A. Hamadeh, M. Wolf, A. Franson, M. Newburger, P. Pirro, M. Weiler, M. R. Page
    Adv. Electron. Mater. 2023, 2300524 (2023)
    arXiv.2305.06259

    13. 2022

  13. A GHz Operating CMOS Compatible ScAlN Based SAW Resonator Used for Surface Acoustic Waves/Spin Waves Coupling
    I. Zdru, C. Nastase, L. N. Hess, F. Ciubotaru, A. Nicoloiu, D. Vasilache, M. Dekkers, M. Geilen, C. Ciornei, G. Boldeiu, A. Dinescu, C. Adelmann, M. Weiler, P. Pirro, A. Müller
    IEEE Electron Device Letters 43, 1551 (2022)

  14. Fully Resonant Magneto-elastic Spinwave Excitation by Surface Acoustic Waves under Conservation of Energy and Linear Momentum
    M. Geilen, A. Nicoloiu, D. Narducci, M. Mohseni, M. Bechberger, M. Ender, F. Ciubotaru, A. Müller, B. Hillebrands, C. Adelmann, P. Pirro
    Appl. Phys. Lett. 120, 242404 (2022)
    arXiv.2106.14705

    APL Geilen 2022

    15. 2020

  15. Interference of co-propagating Rayleigh and Sezawa waves observed with micro-focused Brillouin light scattering spectroscopy
    M. Geilen, F. Kohl, A. Nicoloiu, A. Müller, B. Hillebrands, and P. Pirro
    Applied Physics Letter 117, 213501 (2020)
    arXiv:2009.04797