9 citations · 22 across the 6 of their papers we have counts for
7 papers
Anisotropic wavevector-dependent damping of thickness-quantized magnons
Tamara Azevedo, Rostyslav O. Serha, Yannik Kunz +7
Magnon damping is a key factor governing spin-wave transport and nonlinear dynamics of multimode magnon systems. However, many descriptions rely on the assumption of an effective m…
Nonlinear frequency shift and bistability of magnon-polarons
Kevin Künstle, Matthias Wagner, Philipp Knaus +7
We investigate the nonlinear dynamics of strongly coupled surface acoustic waves (SAWs) and spin waves (SWs) in a magnetoacoustic resonator based on a YIG/ZnO heterostructure by co…
Phase-resolved imaging of coherent phonon-magnon coupling
Yannik Kunz, Florian Kraft, David Breitbach +5
We use a direct phase-resolved optical technique to study the coherence of spin waves (SWs) that are driven by surface acoustic waves (SAWs) via resonant magnetoelastic coupling. F…
Magnon-polaron control in a surface magnetoacoustic wave resonator
Kevin Künstle, Yannik Kunz, Tarek Moussa +6
Strong coupling between distinct quasiparticles in condensed matter systems gives rise to hybrid states with emergent properties. We demonstrate the hybridization of confined phono…
Efficient spin-wave excitation by surface acoustic waves in ultra-low damping YIG/ZnO-heterostructures
Yannik Kunz, Julian Schüler, Finlay Ryburn +7
We demonstrate the efficient excitation of spin waves in the ultra-low magnetic damping material yttrium-iron-garnet (YIG) by surface acoustic waves (SAWs). To this end, we employ…
Generation of gigahertz frequency surface acoustic waves in YIG/ZnO heterostructures
Finlay Ryburn, Kevin Künstle, Yangzhan Zhang +6
We study surface acoustic waves (SAWs) in yttrium iron garnet (YIG)/zinc oxide (ZnO) heterostructures, comparing the results of a computationally lightweight analytical model with…
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$_…