475 citations · 1.4k across the 34 of their papers we have counts for
14 papers · 1 filter
Magnetization dynamics in a three-dimensional interconnected nanowire array
Rajgowrav Cheenikundil, Massimiliano d'Aquino, Riccardo Hertel
Three-dimensional magnetic nanostructures have recently emerged as artificial magnetic material types with unique properties bearing potential for applications, including magnonic…
Investigation of Spin-Wave Dynamics in Gyroid Nanostructures
Mateusz Gołębiewski, Riccardo Hertel, Vitaliy Vasyuchka +6
A new concept in magnonics studies the dynamics of spin waves (SWs) in three-dimensional nanosystems. It is a natural evolution from conventionally used planar systems to explore m…
Micromagnetic study of inertial spin waves in ferromagnetic nanodots
Massimiliano d'Aquino, Salvatore Perna, Matteo Pancaldi +3
Here we report the possibility to excite ultra-short spin waves in ferromagnetic thin-films by using time-harmonic electromagnetic fields with terahertz frequency. Such ultra-fast…
Interpretation of spin-wave modes in Co/Ag nanodot arrays probed by broadband ferromagnetic resonance
Daniel Markó, Rajgowrav Cheenikundil, Julien Bauer +7
We present a detailed investigation of the magnetization dynamics in Co/Ag nanodots, which due to their size can support standing spin-wave (SSW) modes with complex spectral respon…
Switchable Magnetic Frustration in Buckyball Nanoarchitectures
Rajgowrav Cheenikundil, Riccardo Hertel
Recent progress in nanofabrication has led to the emergence of three-dimensional magnetic nanostructures as a vibrant field of research. This includes the study of three-dimensiona…
Geometrically constrained Skyrmions
Swapneel Amit Pathak, Riccardo Hertel
Skyrmions are chiral swirling magnetization structures with nanoscale size. These structures have attracted considerable attention due to their topological stability and promising…
Three-Dimensional Chiral Magnetization Structures in FeGe Nanospheres
Swapneel Amit Pathak, Riccardo Hertel
Skyrmions, spin spirals, and other chiral magnetization structures developing in materials with intrinsic Dzyaloshinsky-Moriya Interaction display unique properties that have been…
Electric Field Control of Three-Dimensional Vortex States in Core-Shell Ferroelectric Nanoparticles
Anna N. Morozovska, Eugene A. Eliseev, Riccardo Hertel +4
In the framework of the Landau-Ginzburg-Devonshire approach coupled with electrostatic equations, we performed finite element modeling of the polarization behavior in a ferroelectr…
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…
Multiscale and multimodel simulation of Bloch point dynamics
Christian Andreas, Attila Kákay, Riccardo Hertel
We present simulation results on the structure and dynamics of micromagnetic point singularities with atomistic resolution. This is achieved by embedding an atomistic computational…
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…
Quenched Slonczewski-Windmill in Spin-Torque Vortex-Oscillators
Volker Sluka, Attila Kákay, Alina M. Deac +3
We present a combined analytical and numerical study on double-vortex spin-torque nano-oscillators and describe a mechanism that suppresses the windmill modes. The magnetization dy…
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…
The magnonic limit of domain wall propagation in ferromagnetic nanotubes
Ming Yan, Christian Andreas, Attila Kákay +2
We report a study on the field-driven propagation of vortex-like domain walls in ferromagnetic nanotubes. This particular geometry gives rise to a special feature of the static wal…