Results 1 to 10 of about 566,007 (280)

Shaping the spin wave spectra of planar 1D magnonic crystals by the geometrical constraints [PDF]

open access: yesScientific Reports, 2022
We present experimental and numerical studies demonstrating the influence of geometrical parameters on the fundamental spin-wave mode in planar 1D magnonic crystals. The investigated magnonic crystals consist of flat stripes separated by air gaps.
Justyna Rychły-Gruszecka   +5 more
doaj   +2 more sources

Recursive evolution of spin-wave multiplets in magnonic crystals of antidot-lattice fractals [PDF]

open access: yesScientific Reports, 2021
We explored spin-wave multiplets excited in a different type of magnonic crystal composed of ferromagnetic antidot-lattice fractals, by means of micromagnetic simulations with a periodic boundary condition.
Gyuyoung Park   +2 more
doaj   +2 more sources

Dynamic control of spin-wave propagation [PDF]

open access: yesScientific Reports, 2021
In this work we present a method to dynamically control the propagation of spin-wave packets. By altering an external magnetic field the refraction of the spin wave at a temporal inhomogeneity is enabled.
Jan-Niklas Toedt, Wolfgang Hansen
doaj   +2 more sources

Isofrequency spin-wave imaging using color center magnetometry for magnon spintronics [PDF]

open access: yesNature Communications
Magnon spintronics aims to harness spin waves in magnetic films for information technologies. Color center magnetometry is a promising tool for imaging spin waves, using electronic spins associated with atomic defects in solid-state materials as sensors.
Samuel Mañas-Valero   +9 more
doaj   +2 more sources

Goos–Hänchen shift of inelastically scattered spin-wave beams and cascade nonlinear magnon processes [PDF]

open access: yesScientific Reports
We study, using micromagnetic simulations, the inelastic scattering of spin-wave beams on edge-localized spin-wave modes in a thin ferromagnetic film.
Krzysztof Sobucki   +3 more
doaj   +2 more sources

Chiral Magnonics: Reprogrammable Nanoscale Spin Wave Networks Based on Chiral Domain Walls [PDF]

open access: yesiScience, 2020
Summary: Spin waves offer promising perspectives as information carriers for future computational architectures beyond conventional complementary metal-oxide-semiconductor (CMOS) technology, owing to their benefits for device minimizations and low-ohmic ...
Jilei Chen, Junfeng Hu, Haiming Yu
doaj   +2 more sources

Ultra-high rate of temperature increment from superparamagnetic nanoparticles for highly efficient hyperthermia

open access: yesScientific Reports, 2021
The magneto-thermal effect, which represents the conversion of magnetostatic energy to heat from magnetic materials, has been spotlighted for potential therapeutic usage in hyperthermia treatments.
Jae-Hyeok Lee   +3 more
doaj   +1 more source

Highly efficient heat-dissipation power driven by ferromagnetic resonance in MFe2O4 (M = Fe, Mn, Ni) ferrite nanoparticles

open access: yesScientific Reports, 2022
We experimentally demonstrated that heat-dissipation power driven by ferromagnetic resonance (FMR) in superparamagnetic nanoparticles of ferrimagnetic MFe2O4 (M = Fe, Mn, Ni) gives rise to highly localized incrementation of targeted temperatures.
Jae-Hyeok Lee   +2 more
doaj   +1 more source

Optimizing machine learning models for granular NdFeB magnets by very fast simulated annealing

open access: yesScientific Reports, 2021
The macroscopic properties of permanent magnets and the resultant performance required for real implementations are determined by the magnets’ microscopic features. However, earlier micromagnetic simulations and experimental studies required relatively a
Hyeon-Kyu Park   +3 more
doaj   +1 more source

Magnetization reversals in core–shell sphere clusters: finite-element micromagnetic simulation and machine learning analysis

open access: yesScientific Reports, 2023
Recently developed permanent magnets, featuring specially engineered microstructures of inhomogeneous magnetic phases, are being considered as cost-effective alternatives to homogeneous single-main-phase hard magnets composed of Nd2Fe14B, without ...
Hyeon-Kyu Park, Sang-Koog Kim
doaj   +1 more source

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