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Surface acoustic waves (SAWs) traveling on the surface of a piezoelectric crystal can, through the magnetoelastic interaction, excite traveling spin-wave resonance in a magnetic film deposited on the substrate. This spin-wave resonance in…

材料科学 · 物理学 2016-09-29 Praveen G. Gowtham , Dominic Labanowski , Sayeef Salahuddin

The excitation and detection of propagating spin waves with lithographed nanoantennas underpin both classical magnonic circuits and emerging quantum technologies. Here, we establish a framework for all-electrical propagating spin-wave…

Finding a new control parameter for magnetic domain wall (DW) motion in magnetic nanostructures is important in general and in particular for the spintronics applications. Here, we show that a circularly polarized magnetic field (CPMF) at…

介观与纳米尺度物理 · 物理学 2010-01-13 P. Yan , X. R. Wang

The asymmetry of the modal profiles for dipole-exchange spin waves propagating in in-plane magnetized ferromagnetic films at a right angle to the applied magnetic field has been investigated theoretically. It was found that in the…

介观与纳米尺度物理 · 物理学 2012-09-20 Mikhail Kostylev

The authors have investigated the possibility of utilizing spin waves for inter- and intra-chip communications, and as logic elements using both simulations and experimental techniques. Through simulations it has been shown that the decay…

Curvature-induced effects allow us to tailor the static and dynamic response of a magnetic system with a high degree of freedom. We study corrugated magnonic waveguides deposited on a sinusoidally modulated substrate prepared by focused…

The utility of nanoscaled ferromagnetic particles requires both stabilized moments and maximized switching speeds. During reversal, the spatial modulation of the nanoparticle magnetization evolves in time, and the energy differences between…

In this paper we numerically conduct micromagnetic modelling to optimize computational boundaries of magnetic thin-film elements applicable to single and double point contact spin torque nano-oscillators. Different boundary conditions have…

The research on the properties of spin waves (SWs) in three-dimensional nanosystems is an innovative idea in the field of magnonics. Mastering and understanding the nature of magnetization dynamics and binding of SWs at surfaces, edges, and…

Active manipulation of spin waves is essential for the development of magnon-based technologies. Here, we demonstrate programmable spin-wave filtering by resetting the spin structure of a pinned 90$^\circ$ N\'{e}el domain wall in a…

Magnetization dynamics in nanomagnets has attracted broad interest since it was predicted that a dc-current flowing through a thin magnetic layer can create spin-wave excitations. These excitations are due to spin-momentum transfer, a…

介观与纳米尺度物理 · 物理学 2012-06-25 F. Macià , A. D. Kent , F. C. Hoppensteadt

We present a method for efficient spin wave guiding within the magnonic nanostructures. Our technique is based on the anomalous refraction in the metamaterial flat slab. The gradual change of the material parameters (saturation…

应用物理 · 物理学 2020-05-20 S Mieszczak , O. Busel , P. Gruszecki , A. N. Kuchko , J. W. Kłos , M. Krawczyk

We report a theory for the coherent and incoherent chiral pumping of spin waves into thin magnetic films through the dipolar coupling with a local magnetic transducer, such as a nanowire. The ferromagnetic resonance of the nanowire is…

介观与纳米尺度物理 · 物理学 2019-12-18 Tao Yu , Yaroslav M. Blanter , Gerrit E. W. Bauer

Spin wave, the collective excitation of magnetic order, is one of the fundamental angular momentum carriers in magnetic systems. Understanding the spin wave propagation in magnetic textures lies in the heart of developing pure magnetic…

材料科学 · 物理学 2021-06-09 Jin Lan , Weichao Yu , Jiang Xiao

We explore the dynamics of spiral spin waves in Permalloy nano-elements with variable aspect ratio of geometric dimensions, and their potential use as improved spin wave emitters with no or little biasing field required. Numerical results…

介观与纳米尺度物理 · 物理学 2020-07-07 D. Osuna Ruiz , E. Burgos Parra , N. Bukin , M. Heath , A. Lara , F. G. Aliev , A. P. Hibbins , F. Y. Ogrin

We report a simple theoretical derivation of the spectrum and damping of spin waves in a cylindrical periodically structured magnetic nanowire (cylindrical magnonic crystal) in the "effective medium" approximation. The dependence of the…

材料科学 · 物理学 2007-05-23 V. V. Kruglyak , R. J. Hicken , A. N. Kuchko , V. Yu. Gorobets

Using space-, time- and phase-resolved Brillouin light scattering spectroscopy we investigate the difference in phase of the two counterpropagating spin waves excited by the same microwave microstrip transducer. These studies are performed…

其他凝聚态物理 · 物理学 2009-03-05 T. Schneider , A. A. Serga , T. Neumann , B. Hillebrands , M. P. Kostylev

Inertia effects in magnetization dynamics are theoretically shown to result in a different type of spin waves, i.e. nutation surface spin waves, which propagate at terahertz frequencies in in-plane magnetized ferromagnetic thin films.…

介观与纳米尺度物理 · 物理学 2021-06-02 Mikhail Cherkasskii , Michael Farle , Anna Semisalova

Nonlinear mechanical metamaterials can exhibit emergent transport phenomena that mimic topological protection without relying on linear band topology. Here, we realize a bifurcation-induced nonreciprocal lattice that supports robust…

In chiral magnets with intrinsic inversion symmetry breaking, it has been known that two spin waves moving in opposite directions can propagate at different velocities, exhibiting a phenomenon called magnetochiral nonreciprocity which…

介观与纳米尺度物理 · 物理学 2021-10-08 Gyungchoon Go , Seunghun Lee , Se Kwon Kim