Junior Research Group Nanoscaled Magnonic Hybrids
Group leader: Jun.-Prof. Dr. Philipp Pirro
Scientific objectives
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:
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.
Scientific Projects
Overview of running and completed projects
Selected recent publications and accepted submissions
Full publication list
- Advances in coherent magnonics
P. Pirro, V. I. Vasyuchka, A. A. Serga, B. Hillebrands
Nat Rev Mater (2021) - Nonlinear dynamics of topological ferromagnetic textures for frequency multiplication
D.R. Rodrigues, J. Nothhelfer, M. Mohseni, R. Knapman, P. Pirro, and K. Everschor-Sitte
Phys. Rev. Applied 16, 014020 (2021) - 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
arXiv:2106.14705 - Stimulated-Raman-adiabatic-passage mechanism in a magnonic environment
Q. Wang, T. Brächer, M. Fleischhauer, B. Hillebrands, P. Pirro
Appl. Phys. Lett. 118, 182404 (2021) - Inverse-design magnonic devices
Q. Wang, A. V. Chumak, and P. Pirro
Nat. Commun. 12, 2636 (2021) - Long-range spin-wave propagation in transversely magnetized nano-scaled conduits
B. Heinz, Q. Wang, M. Schneider, E. Weiß, A. Lentfert, B. Lägel, T. Brächer, C. Dubs, O. V. Dobrovolskiy, P. Pirro, and A. V. Chumak
Appl. Phys. Lett. 118, 132406 (2021) - Controlling the nonlinear relaxation of quantized propagating magnons in nanodevices
M. Mohseni, Q. Wang, B. Heinz, M. Kewenig, M. Schneider, F. Kohl, B. Lägel, C. Dubs, A. V. Chumak, and P. Pirro
Phys. Rev. Lett. 126, 097202 (2021) - A nonlinear magnonic nano-ring resonator
Q. Wang, A. Hamadeh, R. Verba, V. Lomakin, M. Mohseni, B. Hillebrands, A. V. Chumak, and P. Pirro
npj Comput Mater 6, 192 (2020) - Interference of co-propagating Rayleigh and Sezawa waves observed with micro-focussed Brillouin light scattering spectroscopy
M. Geilen, F. Kohl, A. Nicoloiu, A. Müller, B. Hillebrands, and P. Pirro
Appl. Phys. Lett. 117, 213501 (2020) - A magnonic directional coupler for integrated magnonic half-adders
Q. Wang, M. Kewenig, M. Schneider, R. Verba, F. Kohl, B. Heinz, M. Geilen, M. Mohseni, B. Lägel, F. Ciubotaru, C. Adelmann, C. Dubs, S. D. Cotofana, O. V. Dobrovolskiy, T. Brächer, P. Pirro, and A. V. Chumak
Nat. Electron. 3, 765 (2020)
Additional material: arXiv:1905.12353 arXiv:1902.02855
- Opportunities and challenges for spintronics in the microelectronics industry
B. Dieny, I. L. Prejbeanu, K. Garello, P. Gambardella, P. Freitas, R. Lehndorff, W. Raberg, U. Ebels, S. O. Demokritov, J. Åkerman, A. Deac, P. Pirro, C. Adelmann, A. Anane, A. V. Chumak, A. Hirohata, S. Mangin, S. O. Valenzuela, M. C. Onbaşlı, M. d’Aquino, G. Prenat, G. Finocchio, L. Lopez-Diaz, R. Chantrell, O. Chubykalo-Fesenko, and P. Bortolotti
Nat. Electron. 3, 446 (2020) - Slow-wave based magnonic diode
M. Grassi, M. Geilen, D. Louis, M. Mohseni, T. Brächer, M. Hehn, D. Stoeffler, M. Bailleul, P. Pirro and Y. Henry
Phys. Rev. Applied 14, 024047 (2020)
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