475 citations · 1.8k across the 25 of their papers we have counts for
27 papers
Exchange-mediated directional coupling of short-wavelength spin waves
Zhen Zhu, Roman Verba, Philipp Pirro +2
Miniaturizing magnonic circuits and increasing their processing speed require spin waves with progressively shorter wavelengths. However, conventional directional couplers rely on…
Nanoscaled magnon transistor based on stimulated three-magnon splitting
Xu Ge, Roman Verba, Philipp Pirro +2
Magnonics is a rapidly growing field, attracting much attention for its potential applications in data transport and processing. Many individual magnonic devices have been proposed…
Perspective on Nanoscaled Magnonic Networks
Qi Wang, Gyorgy Csaba, Roman Verba +2
With the rapid development of artificial intelligence in recent years, mankind is facing an unprecedented demand for data processing. Today, almost all data processing is performed…
Nonlinear erasing of propagating spin-wave pulses in thin-film Ga:YIG
David Breitbach, Moritz Bechberger, Björn Heinz +8
Nonlinear phenomena are key for magnon-based information processing, but the nonlinear interaction between two spin-wave signals requires their spatio-temporal overlap which can be…
Controlling selection rules for magnon scattering in nanomagnets by spatial symmetry breaking
Arezoo Etesamirad, Julia Kharlan, Rodolfo Rodriguez +2
Nanomagnets are the building blocks of many existing and emergent spintronic technologies. Magnetization dynamics of nanomagnets is often dominated by nonlinear processes, which ha…
Simultaneous multitone microwave emission by DC-driven spintronic nano-element
A. Hamadeh, D. Slobodianiuk, R. Moukhader +9
Current-induced self-sustained magnetization oscillations in spin-torque nano-oscillators (STNOs) are promising candidates for ultra-agile microwave sources or detectors. While usu…
Deeply nonlinear excitation of self-normalised exchange spin waves
Qi Wang, Roman Verba, Björn Heinz +9
Spin waves are ideal candidates for wave-based computing, but the construction of magnetic circuits is blocked by a lack of an efficient mechanism to excite long-running exchange s…
Curvilinear spin-wave dynamics beyond the thin-shell approximation: Magnetic nanotubes as a case study
Lukas Körber, Roman Verba, Jorge A. Otálora +4
Surface curvature of magnetic systems can lead to many static and dynamic effects which are not present in flat systems of the same material. These emergent magnetochiral effects c…
Antiferromagnetic parametric resonance driven by voltage-controlled magnetic anisotropy
Riccardo Tomasello, Roman Verba, Victor Lopez-Dominguez +5
Voltage controlled magnetic anisotropy (VCMA) is a low-energy alternative to manipulate the ferromagnetic state, which has been recently considered also in antiferromagnets (AFMs).…
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…
Roadmap on Spin-Wave Computing
A. V. Chumak, P. Kabos, M. Wu +113
Magnonics is a field of science that addresses the physical properties of spin waves and utilizes them for data processing. Scalability down to atomic dimensions, operations in the…
Spin transport-induced damping of coherent THz spin dynamics in iron
L. Brandt, R. Verba, N. Liebing +6
We study the damping of perpendicular standing spin-waves (PSSWs) in ultrathin Fe films at frequencies up to 2.4 THz. The PSSWs are excited by optically generated ultrashort spin c…
Parametric generation of spin waves in nano-scaled magnonic conduits
Björn Heinz, Morteza Mohseni, Akira Lentfert +8
The research feld of magnonics proposes a low-energy wave-logic computation technology based on spin waves to complement the established CMOS technology and provide a basis for eme…
Theory of three-magnon interaction in a vortex-state magnetic nanodot
Roman Verba, Lukas Körber, Katrin Schultheiss +3
We use vector Hamiltonian formalism (VHF) to study theoretically three-magnon parametric interaction (or three-wave splitting) in a magnetic disk existing in a magnetic vortex grou…
A nonlinear magnonic nano-ring resonator
Qi Wang, Abbass Hamadeh, Roman Verba +5
The field of magnonics, which aims at using spin waves as carriers in data processing devices, has attracted increasing interest in recent years. We present and study micromagnetic…
Nonlocal stimulation of three-magnon splitting in a magnetic vortex
Lukas Körber, Katrin Schultheiss, Tobias Hula +4
We present a combined numerical, theoretical and experimental study on stimulated three-magnon splitting in a magnetic disk in the vortex equilibrium state. Our micromagnetic simul…
Temperature dependence of spin pinning and spin-wave dispersion in nanoscopic ferromagnetic waveguides
Björn Heinz, Qi Wang, Roman Verba +10
The field of magnonics attracts significant attention due to the possibility of utilizing information coded into the spin-wave phase or amplitude to perform computation operations…
Parametric generation of propagating spin-waves in ultra thin yttrium iron garnet waveguides
M. Mohseni, M. Kewenig, R. Verba +10
We present the experimental demonstration of the parallel parametric generation of spin-waves in a microscaled yttrium iron garnet waveguide with nanoscale thickness. Using Brillou…
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…
Integrated magnonic half-adder
Qi Wang, Roman Verba, Thomas Brächer +5
Spin waves and their quanta magnons open up a promising branch of high-speed and low-power information processing. Several important milestones were achieved recently in the realiz…
Spin pinning and spin-wave dispersion in nanoscopic ferromagnetic waveguides
Q. Wang, B. Heinz, R. Verba +8
Spin waves are investigated in Yttrium Iron Garnet (YIG) waveguides with a thickness of 39 nm and widths ranging down to 50 nm, i.e., with aspect ratios thickness over width approa…
Excitation of whispering gallery magnons in a magnetic vortex
K. Schultheiss, R. Verba, F. Wehrmann +10
One of the most fascinating topics in current quantum physics are hybridised systems, in which different quantum resonators are strongly coupled. Prominent examples are circular re…
Backscattering immunity of dipole-exchange magnetostatic surface spin waves
M. Mohseni, R. Verba, T. Bracher +4
The existence of backscattering-immune spin-wave modes is demonstrated in magnetic thin films of nano-scale thickness. Our results reveal that chiral Magneto Static Surface Waves (…
Theory of nonreciprocal spin waves excitation in spin-Hall oscillators with Dzyaloshinkii-Moriya interaction
R. Zivieri, A. Giordano, R. Verba +4
A two-dimensional analytical model for the description of the excitation of nonreciprocal spin waves by spin current in spin-Hall oscillators in the presence of the interfacial Dzy…