186 citations · 701 across the 18 of their papers we have counts for
18 papers
Nonreciprocal spin-wave dispersion in magnetic bilayers
C. Heins, V. Iurchuk, O. Gladii +5
Nonreciprocal spin-wave propagation in bilayer ferromagnetic systems has attracted significant attention due to its potential to precisely quantify material parameters as well as f…
Control of 4-magnon-scattering in a magnonic waveguide by pure spin current
Toni Hache, Lukas Koerber, Tobias Hula +6
We use a pure spin current originating from the spin Hall effect to generate a spin-orbit torque (SOT) strongly reducing the effective damping in an adjacent ferromagnet. Due to ad…
Tailoring crosstalk between localized 1D spin-wave nanochannels using focused ion beams
Vadym Iurchuk, Javier Pablo-Navarro, Tobias Hula +8
1D spin-wave conduits are envisioned as nanoscale components of magnonics-based logic and computing schemes for future generation electronics. `A-la-carte methods of versatile cont…
Mode splitting of spin waves in magnetic nanotubes with discrete symmetries
Lukas Körber, István Kézsmárki, Attila Kákay
We investigate how geometry influences spin dynamics in polygonal magnetic nanotubes. We find that lowering the rotational symmetry of nanotubes by decreasing the number of planar…
Curvature induced drift and deformation of magnetic skyrmions: comparison of ferro- and antiferromagnetic cases
Kostiantyn V. Yershov, Attila Kakay, Volodymyr P. Kravchuk
The influence of the geometrical curvature of chiral magnetic films on the static and dynamic properties of hosted skyrmions are studied theoretically. We predict the effects of th…
Numerical reverse engineering of general spin-wave dispersions: Bridge between numerics and analytics using a dynamic-matrix approach
Lukas Körber, Attila Kákay
Modern problems in magnetization dynamics require more and more the numerical determination of the spin-wave spectra and -dispersion in magnetic systems where analytic theories are…
Stress-induced modification of gyration dynamics in stacked double-vortex structures studied by micromagnetic simulations
Vadym Iurchuk, Attila Kákay, Alina M. Deac
In this paper, using micromagnetic simulations, we investigate the stress-induced frequency tunability of double-vortex nano-oscillators comprising magnetostrictive and non-magneto…
Spin-wave dynamics and symmetry breaking in an artificial spin ice
Susmita Saha, Jingyuan Zhou, Kevin Hofhuis +4
Artificial spin ices are periodic arrangements of interacting nanomagnets successfully used to investigate emergent phenomena in the presence of geometric frustration. Recently, it…
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…
Zero-field dynamics stabilized by in-plane shape anisotropy in MgO-based spin-torque oscillators
Ewa Kowalska, Attila Kákay, Ciarán Fowley +4
Here we demonstrate numerically that shape anisotropy in MgO-based spin-torque nano-oscillators consisting of an out-of-plane magnetized free layer and an in-plane polarizer is nec…
Tunnel magnetoresistance angular and bias dependence enabling tuneable wireless communication
Ewa Kowalska, Akio Fukushima, Volker Sluka +7
Spin-transfer torques (STTs) can be exploited in order to manipulate the magnetic moments of nanomagnets, thus allowing for new consumer-oriented devices to be designed. Of particu…
Emission and Propagation of Multi-Dimensional Spin Waves with nanoscale wavelengths in Anisotropic Spin Textures
V. Sluka, T. Schneider, R. A. Gallardo +15
Spin waves offer intriguing novel perspectives for computing and signal processing, since their damping can be lower than the Ohmic losses in conventional CMOS circuits. For contro…
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…
Multiplet of skyrmion states on a curvilinear defect: skyrmion lattices as a ground state
Volodymyr P. Kravchuk, Denis D. Sheka, Oleksii M. Volkov +4
We show that the presence of a localized curvilinear defect drastically changes magnetic properties of a thin perpendicularly magnetized ferromagnetic film. For a large enough defe…
The complete micromagnetic characterization of asymmetrically sandwiched ferromagnetic films
M. Kopte, U. K. Rößler, R. Schäfer +10
The magnetic properties of ferromagnetic thin films down to the nanoscale are ruled by the exchange stiffness, anisotropies and the effects of magnetic fields. As surfaces break in…
Analytic form of head-to-head domain walls in thin ferromagnetic cylinders
Riccardo Hertel, Attila Kakay
The one-dimensional problem of a static head-to-head domain wall structure in a thin soft-magnetic nanowire with circular cross-section is treated within the framework of micromagn…
Spectral analysis of topological defects in an artificial spin-ice lattice
Sebastian Gliga, Attila Kákay, Riccardo Hertel +1
Arrays of suitably patterned and arranged magnetic elements may display artificial spin-ice structures with topological defects in the magnetization, such as Dirac monopoles and Di…
Spin-Transfer Torque Induced Vortex Dynamics in Fe/Ag/Fe Nanopillars
Volker Sluka, Attila Kakay, Alina M. Deac +3
We report experimental and analytical work on spin-transfer torque induced vortex dynamics in metallic nanopillars with in-plane magnetized layers. We study nanopillars with a diam…