Results 21 to 30 of about 60,563 (256)
Intrinsic DMI-free skyrmion formation and robust dynamic behaviors in magnetic hemispherical shells
Scientific Reports, 2021 We performed finite-element micromagnetic simulations to examine the formation of skyrmions without intrinsic Dzyaloshinskii–Moriya interaction (DMI) in magnetic hemispherical shells. We found that curvature-induced DM-like interaction allows for further
Jaehak Yang +3 more
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Optical-acoustic excitation of broadband terahertz antiferromagnetic spin waves
New Journal of Physics, 2022 We propose an optical-acoustic means to excite broadband terahertz antiferromagnetic (AFM) spin wave in a metal/insulator/antiferromagnet heterostructure.
Jinglin Zhang +13 more
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Snell’s Law for Spin Waves [PDF]
Physical Review Letters, 2016 We report the experimental observation of Snell's law for magneto-static spin waves in thin ferromagnetic Permalloy films by imaging incident, refracted and reflected waves. We use a thickness step as the interface between two media with different dispersion relation. Since the dispersion relation for magneto-static waves in thin ferromagnetic films is
Stigloher J +11 more
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Nuclear Physics B - Proceedings Supplements, 1987 Abstract A high resolution study is made of spin-wave dynamics above the Suhl threshold in a sphere of yttrium iron garnet driven by microwave ferromagnetic resonance. In different regions of parameter space observed behavior includes: excitation of a single spatial spin-wave mode at threshold; when two modes are excited, low frequency collective ...
Bryant, P., Jeffries, C., Nakamura, K.
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High-frequency spin wave modes excited by strain pulse in vortex state magnetostrictive nanomagnets
AIP Advances, 2021 Using micromagnetic simulations, we find that the high frequency spin wave modes of vortexes in circular magnetostrictive nanomagnets can be excited by in-plane strain pulses, which are quite distinct from the spin wave modes excited by magnetic field ...
Huanqing Cui +7 more
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Spin wave modulation by topographical perturbation in Y3Fe5O12 thin films
AIP Advances, 2020 We present a comparison of the spin wave propagation in Au/Y3Fe5O12 and Pt/Y3Fe5O12 bilayers. Microwave technique with a co-planner waveguide arrangement was used to excite and detect the spin wave.
Md Shamim Sarker +2 more
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Spin-wave modes of magnetic bimerons in nanodots
New Journal of Physics, 2022 We report the resonance excitations and the spin-wave modes of a single bimeron in a confined nanodot by using micromagnetic simulations. Magnetic bimerons can be considered as in-plane topological spin textures of magnetic skyrmions, which means that ...
Chendong Jin +7 more
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Advanced Electronic Materials, 2023 Improvement of transmission efficiency of spin waves in magnonic devices is crucial for high‐efficiency magnon‐based operations. However, existing techniques for enhancing spin‐wave detection signals, which either improve waveguide material quality or ...
Jiapeng Xu +9 more
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AIP Advances, 2019 We explored, by micromagnetic simulations, a new-concept RS (reset-set) latch logic operation based on magnetic-dot networks comprised of physically separated but dipolar-coupled three disks in magnetic-vortex states. To devise this robust RS latch logic
Young-Jun Cho, Sang-Koog Kim
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Propagating backward-volume spin waves in epitaxial Fe films
AIP Advances, 2022 The propagation characteristics of backward-volume magnetostatic spin-waves in epitaxial Fe(001) films were studied by frequency-domain and time-domain spin-wave propagation spectroscopies using a vector network analyser.
S. Nezu +3 more
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