Search Results - "Kákay, Attila"
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Emission and propagation of 1D and 2D spin waves with nanoscale wavelengths in anisotropic spin textures
Published in Nature nanotechnology (01-04-2019)“…Spin waves offer intriguing perspectives for computing and signal processing, because their damping can be lower than the ohmic losses in conventional…”
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2
Beating the walker limit with massless domain walls in cylindrical nanowires
Published in Physical review letters (05-02-2010)“…We present a micromagnetic study on the current-induced domain-wall motion in cylindrical Permalloy nanowires with diameters below 50 nm. The transverse domain…”
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3
Fast domain wall dynamics in magnetic nanotubes: Suppression of Walker breakdown and Cherenkov-like spin wave emission
Published in Applied physics letters (19-09-2011)“…We report on a micromagnetic study on domain wall (DW) propagation in ferromagnetic nanotubes. It is found that DWs in a tubular geometry are much more robust…”
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4
Excitation of the Gyrotropic Mode in a Magnetic Vortex by Time-Varying Strain
Published in Physical review letters (04-10-2024)“…We demonstrate the excitation of the gyrotropic mode in a magnetostrictive vortex by time-varying strain. The vortex dynamics is driven by a time-varying…”
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5
Multiscale and multimodel simulation of Bloch-point dynamics
Published in Physical review. B, Condensed matter and materials physics (03-04-2014)Get full text
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6
Spin-Wave Dynamics and Symmetry Breaking in an Artificial Spin Ice
Published in Nano letters (24-03-2021)“…Artificial spin ices are periodic arrangements of interacting nanomagnets which allow investigating emergent phenomena in the presence of geometric…”
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7
Experimental Observation of Exchange-Driven Chiral Effects in Curvilinear Magnetism
Published in Physical review letters (16-08-2019)“…The main origin of the chiral symmetry breaking and, thus, for the magnetochiral effects in magnetic materials is associated with an antisymmetric exchange…”
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Visualizing Magnetic Structure in 3D Nanoscale Ni–Fe Gyroid Networks
Published in Nano letters (13-05-2020)“…Arrays of interacting 2D nanomagnets display unprecedented electromagnetic properties via collective effects, demonstrated in artificial spin ices and magnonic…”
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9
Analytic form of transverse head-to-head domain walls in thin cylindrical wires
Published in Journal of magnetism and magnetic materials (01-04-2015)“…The static problem of a one-dimensional, transverse head-to-head domain wall structure in a thin soft-magnetic nanowire with circular cross-section is treated…”
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10
Chiral symmetry breaking and pair-creation mediated Walker breakdown in magnetic nanotubes
Published in Applied physics letters (18-06-2012)Get full text
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11
Origin and Manipulation of Stable Vortex Ground States in Permalloy Nanotubes
Published in Nano letters (09-05-2018)“…We present a detailed study on the static magnetic properties of individual permalloy nanotubes (NTs) with hexagonal cross-sections. Anisotropic…”
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12
Strain Anisotropy and Magnetic Domains in Embedded Nanomagnets
Published in Small (Weinheim an der Bergstrasse, Germany) (01-12-2019)“…Nanoscale modifications of strain and magnetic anisotropy can open pathways to engineering magnetic domains for device applications. A periodic magnetic domain…”
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13
Three-dimensional magnetic nanotextures with high-order vorticity in soft magnetic wireframes
Published in Nature communications (11-03-2024)“…Additive nanotechnology enable curvilinear and three-dimensional (3D) magnetic architectures with tunable topology and functionalities surpassing their planar…”
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14
Hybrid finite-element/boundary-element method to calculate Oersted fields
Published in Journal of magnetism and magnetic materials (01-11-2014)“…The article presents a general-purpose hybrid finite-element/boundary-element method (FEM/BEM) to calculate magnetostatic fields generated by stationary…”
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15
Tailoring crosstalk between localized 1D spin-wave nanochannels using focused ion beams
Published in Scientific reports (14-01-2023)“…1D spin-wave conduits are envisioned as nanoscale components of magnonics-based logic and computing schemes for future generation electronics. À-la-carte…”
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16
Magnetization Dynamics of an Individual Single‐Crystalline Fe‐Filled Carbon Nanotube
Published in Small (Weinheim an der Bergstrasse, Germany) (01-12-2019)“…The magnetization dynamics of individual Fe‐filled multiwall carbon‐nanotubes (FeCNT), grown by chemical vapor deposition, are investigated by microresonator…”
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17
Numerical Ferromagnetic Resonance Experiments in Nanosized Elements
Published in IEEE magnetics letters (2021)“…In this letter, we present a numerical approach to obtain the ferromagnetic resonance spectra of micrometer- and nanometer-sized magnetic elements by…”
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18
Spin-Wave Reciprocity in the Presence of Néel Walls
Published in IEEE magnetics letters (01-01-2017)“…The reciprocity of spin-wave propagation in 180° Néel walls and surrounding domains is studied. For this, the dispersion relation, phase fronts, and spin-wave…”
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19
Spin-Cherenkov effect and magnonic Mach cones
Published in Physical review. B, Condensed matter and materials physics (01-12-2013)“…We report on the Cherenkov-type excitation of spin waves (SWs) in ferromagnets. Our micromagnetic simulations show that a localized magnetic field pulse moving…”
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20
New Dimension in Magnetism and Superconductivity: 3D and Curvilinear Nanoarchitectures
Published in Advanced materials (Weinheim) (01-01-2022)“…Traditionally, the primary field, where curvature has been at the heart of research, is the theory of general relativity. In recent studies, however, the…”
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