Results 51 to 60 of about 60,563 (256)
From trochoidal symmetry to chaotic vortex-core reversal in magnetic nanostructures
npj SpintronicsThe deterministic and stochastic control of nonlinear dynamics in magnetic solitons is crucial for future information processing technologies. Yet, the transition to chaos in such systems remains largely unexplored.
Gyuyoung Park, Bojong Kim, Sang-Koog Kim
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Advanced Engineering Materials, EarlyView.This article presents an experimental and numerical modal investigation of composite sandwich structures using surfboards as model systems. By comparing different core materials and reinforcement strategies, the study demonstrates how local stiffeners influence vibrational response and introduce characteristic modal features, highlighting modal ...
Brett Connellan +4 more
wiley +1 more source
Spin-Wave-Driven Skyrmion Motion in Magnetic Nanostrip
Journal of Nanotechnology, 2018 The photon-assisted magnetic recording utilizes the ultrafast laser to excite the spin wave in the magnetic nanostructures and accordingly switch its magnetization state.
Guangfu Zhang +4 more
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Spin angular momentum of gravitational wave interference
New Journal of Physics, 2021 Spin angular momentum (SAM) is an important feature for wave systems, prominent in various properties like spin-momentum locking of wave propagations.
Shuo Xin, Yang Long, Jie Ren
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Magnetic Control of Chiral Hybridized Phonon Magnetic Moments in Ferrimagnets Fe2‐xZnxMo3O8
Advanced Functional Materials, EarlyView.Helicity‐resolved magneto‐Raman spectroscopy reveals magnetic control of chiral phonon magnetic moments in polar ferrimagnet (ZnxFe2−xMo3O₈). Large spontaneous zero‐field phonon splittings, selective phonon–magnon coupling, and asymmetric Zeeman responses demonstrate that phonon chirality is governed by magnon‐phonon coupling and magnetization.
Youngsu Choi +8 more
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Spin-wave-spin-wave interaction and the thermodynamics of the Heisenberg spin chain
, 1993 The low-temperature free energy of the spin S quantum Heisenberg ferromagnetic chain in a strong magnetic field is obtained in a two-particle approximation by using exact solution of two-spin-wave problem. The result is beyond the perturbation theory because it incorporates the both bound and scattering state contributions, and the scattering effect is
openaire +3 more sources
Exploring Curvature Effects in Direct‐Written 3D Curved Hollow Magnetic Nanoshells
Advanced Functional Materials, EarlyView.Fabricated by a hybrid FEBID/CVD method, 3D PtC/Co3Fe core–shell heterostructures with engineered curvature and shell thickness exhibit complex reversal modes with axially symmetric N'eel‐type domain walls. XMCD‐PEEM combined with full‐scale micromagnetic simulations reveal how curvature and thickness govern the domain wall energy landscape and shape ...
Oleksii M. Volkov +10 more
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npj SpintronicsNon-Hermitian spectral singularities including bound states in the continuum (BICs) and exceptional points (EPs) enable powerful forms of wave control but remain challenging to implement in planar, passive magnonic systems.
Bojong Kim, Sang-Koog Kim
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Hybridization‐Induced Spin‐Wave Transmission Stop Band within a 1D Diffraction Grating
Advanced Physics Research, 2023 Spin wave propagation is studied through a diffraction grating in a 200 nm thick YIG film by using scanning time resolved magneto‐optic Kerr microscopy (TR‐MOKE) and supported by micromagnetic simulations.
C. Riedel +4 more
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Advanced Functional Materials, EarlyView.Moiré band engineering in graphene/hexagonal boron nitride–based superlattices unlocks van Hove singularities (VHSs) for terahertz (THz) optoelectronics. Tuning the Fermi level near these singularities, associated with secondary neutrality points (SNPs), enhances the photothermoelectric response.
Leonid Elesin +16 more
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