Spin waves, the elementary low energy excitations of an ordered spin system, and their bosonic quanta, magnons, carry energy and angular momentum in the form of spin. The field of magnonics aims to create devices for sensing, data processing and logic which are based on spin waves and their outstanding properties like intrinsic nonlinearity and nanometer wavelengths at GHz frequencies.

Our scientific aim is to explore and combine emerging physical phenomena which can be used to realise novel magnonic hybrid systems with novel and superior characteristics. We have a particular focus on:

  • Nonlinear spin-wave phenomena in micro- and nanostructures
  • Nanoscaled magnonic devices for unconventional data processing
  • Novel materials for magnonics including low-damping Heuler compounds
  • Hybrid systems combining magnonics with spintronic and phononic systems
  • Amplification and control of coherent spin-waves in micro-and nanostructures using parametric processes
  • Nonreciprocal magnonic systems based on dipole-dipole and DMI interactions

To achieve our goals, we investigate magnonics systems experimentally by Brillouin light scattering spectroscopy and inductive techniques. To study and optimize magnonic systems before fabrication, we employ massively parallelized micromagnetic simulations. These simulations are run and analysed by our home-made AITHERICON software platform with the aim to use artificial intelligence, neural networks and inverse design methods to create magnonic systems with designed and superior properties for wave-based transport and data processing.

Funding Partners

News

Visit of Davi Rodrigues
On May 16th and 17th 2023, we had the pleasure to have Davi Rodrigues from the Politecnico di Bari in Italy as our guest in Kaiserslautern. Davi gave an inspiring presentation about “Nonlinear Magnetization Dynamics for Analog Computing”. Thank you…
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Der Spin schlägt Wellen
We are very happy that our group could contribute to this article for the general public which explains the idea of spin-wave based computing. It appeared in the „Bild der Wissenschaft“ (in German) in April 2022 and is linked below….
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Internship of Nicolas Fermon
From Mach to July 2023, we had the pleasure to host Nicolas Fermon from Ecole National Supérieure (ENS) Paris-Saclay for his internship. As part of Anna Friedel’s work on highly polarized Heusler alloys, Nicolas studied their magneto-optical properties. He was…
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SELECTED RECENT PUBLICATIONS AND ACCEPTED SUBMISSIONS

Link to FULL PUBLICATION LIST

    2026

  1. On demand laser-induced frequency tuning of coherent magnons in a nanometer-thick magnet at room temperature
    Volker Wiechert, Hanchen Wang, William Legrand, Pietro Gambardella, David Breitbach, Philipp Pirro, Michaela Lammel, Andrea Meo, Giovanni Finocchio & Davide Bossini
    Nature Communications 17, 145 (2026)
    • Magnonics
    • Microwave
    • FMR
    • Nonlinear process
    • Nanostructures


  2. Integrated magnonic chip using cascaded logic
    Mengying Guo, Xudong Jing, Kristýna Davídková, Roman Verba, Zhenyu Zhou, Xueyu Guo, Carsten Dubs, Yiheng Rao, Kaiming Cai, Jing Li, Philipp Pirro, Andrii V. Chumak, Qi Wang
    arXiv.2601.02644
    • Magnonics
    • Nonlinear process
    • Nanostructures
    • Microwave
    • BLS
    • Neuromorphic


  3. 2025

  4. 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
    • Surface Acoustic Waves (SAW)
    • Magneto-elastic interaction
    • Micromagnetism


  5. Spin-wave emission with current-controlled frequency by a PMA-based spin-Hall oscillator
    Moritz Bechberger, David Breitbach, Abbas Koujok, Björn Heinz, Carsten Dubs, Abbass Hamadeh, Philipp Pirro
    2512.00593
    • Spin waves
    • BLS
    • Nano-oscillators
    • Nonlinear process


  6. Nonreciprocal Spin Waves in Out-of-Plane Magnetized Coupled Waveguides Reconfigured by Domain Wall Displacements
    Hanadi Mortada, Roman Verba, Qi Wang, Philipp Pirro, Alexandre Abbass Hamadeh
    advanced electronic materials e00575, (2025)
    • Magnonics
    • Micromagnetism
    • Spin waves
    • Non-reciprocity