248 citations · 531 across the 12 of their papers we have counts for
12 papers
Coherent phonon-magnon interactions detected by micro-focused Brillouin light scattering spectroscopy
Yannik Kunz, Matthias Küß, Michael Schneider +4
We investigated the interaction of surface acoustic waves and spin waves with spatial resolution by micro-focused Brillouin light scattering spectroscopy in a CoFeB$_…
Amplification and frequency conversion of spin waves using acoustic waves
M. Mohseni, A. Hamadeh, M. Geilen +1
We numerically study the acoustic parametric amplification of spin waves using surface acoustic waves (SAW) in a magnetic thin film. First, we illustrate how the process of paramet…
Parametric Excitation and Instabilities of Spin Waves driven by Surface Acoustic Waves
Moritz Geilen, Roman Verba, Alexandra Nicoloiu +10
The parametric excitation of spin waves by coherent surface acoustic waves is demonstrated experimentally in metallic magnetic thin film structures. The involved magnon modes are a…
Higgs and Goldstone spin-wave modes in striped magnetic texture
Matías Grassi, Moritz Geilen, Kosseila Ait Oukaci +6
Spontaneous symmetry breaking is ubiquitous in physics. Its spectroscopic signature consists in the softening of a specific mode upon approaching the transition from the high symme…
Fully Resonant Magneto-elastic Spin-wave Excitation by Surface Acoustic Waves under Conservation of Energy and Linear Momentum
Moritz Geilen, Alexandra Nicoloiu, Daniele Narducci +8
We report on the resonant excitation of spin waves in micro-structured magnetic thin films by surface acoustic waves (SAWs). The spin waves as well as the acoustic waves are studie…
Interference of co-propagating Rayleigh and Sezawa waves observed with micro-focussed Brillouin Light Scattering Spectroscopy
Moritz Geilen, Felix Kohl, Alexandra Stefanescu +3
We use micro-focussed Brillouin light scattering spectroscopy (BLS) to investigate surface acoustic waves (SAWs) in a GaN layer on a Si substrate at GHz frequencies. Furthermore…
Slow-wave based magnonic diode
Matías Grassi, Moritz Geilen, Damien Louis +7
Spin waves, the collective excitations of the magnetic order parameter, and magnons, the associated quasiparticles, are envisioned as possible data carriers in future wave-based co…
A magnonic directional coupler for integrated magnonic half-adders
Q. Wang, M. Kewenig, M. Schneider +14
Magnons, the quanta of spin waves, could be used to encode information in beyond-Moore computing applications, and magnonic device components, including logic gates, transistors, a…
Experimental Realization of a Passive GHz Frequency-Division Demultiplexer for Magnonic Logic Networks
Frank Heussner, Giacomo Talmelli, Moritz Geilen +9
The emerging field of magnonics employs spin waves and their quanta, magnons, to implement wave-based computing on the micro- and nanoscale. Multi-frequency magnon networks would a…
Optical determination of the exchange stiffness constant in an iron garnet
Keita Matsumoto, Thomas Brächer, Philipp Pirro +7
Brillouin light scattering measurements were performed in the backscattering geometry on a Bi-substituted rare earth iron garnet. We observed two different peaks, one attributed to…
Determination of the spin Hall angle in single-crystalline Pt films from spin pumping experiments
Sascha Keller, Laura Mihalceanu, Matthias R. Schweizer +12
We report on the determination of the spin Hall angle and the identification of the role of the interface roughness for the inverse spin Hall effect (ISHE) in ultra-clean, defect-r…
A micro-sized parametric spin-wave amplifier
Thomas Brächer, Frank Heussner, Philipp Pirro +6
We present the experimental observation of the localized amplification of externally excited spin waves in a transversely in-plane magnetized NiFe magnonic waveguide…