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We study the problem of controlling spin waves propagation through an antiferromagnet/ferromagnet interface via tuning material parameters. It is done by introducing the degree of sublattice noncompensation of antiferromagnet (DSNA), which…

Mesoscale and Nanoscale Physics · Physics 2021-12-30 Oksana Busel , Oksana Gorobets , Oleg A. Tretiakov

We theoretically study the interaction of spin waves and a domain wall in a quasi-one-dimensional easy-cone ferromagnet. The gapless spin waves on top of a domain wall are found to exhibit finite reflection in contrast to the well-known…

Mesoscale and Nanoscale Physics · Physics 2024-07-10 Wooyon Kim , Se Kwon Kim

Spin waves propagating in magnetic materials exhibit nonlinear behavior at large amplitudes due to the competition between excitation and relaxation, providing an attractive platform for exploring nonlinear wave dynamics. In particular,…

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…

Mesoscale and Nanoscale Physics · Physics 2020-07-07 D. Osuna Ruiz , E. Burgos Parra , N. Bukin , M. Heath , A. Lara , F. G. Aliev , A. P. Hibbins , F. Y. Ogrin

Using analysis of iso-frequency contours of the spin-wave dispersion relation, supported by micromagnetic simulations, we study the propagation of spin-wave (SW) beams in thin ferromagnetic films through the areas of the inhomogeneous…

Mesoscale and Nanoscale Physics · Physics 2018-03-28 Pawel Gruszecki , Maciej Krawczyk

We use spin torque ferromagnetic resonance to measure the spectral properties of dipole-exchange spin waves in permalloy nanowires. Our measurements reveal that geometric confinement has a profound effect on the damping of spin waves in the…

Mesoscale and Nanoscale Physics · Physics 2013-05-29 Carl Boone , Jordan Katine , Jeff Childress , Vasil Tiberkevich , Andrei Slavin , Jian Zhu , Xiao Cheng , Ilya Krivorotov

We numerically demonstrate that domain walls can be used as spin wave waveguides. We show that gapless spin waves bounded inside a domain wall can be guided by the domain wall. For Bloch walls, we further show that the bound spin waves can…

Mesoscale and Nanoscale Physics · Physics 2015-12-24 X. S. Wang , X. R. Wang

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…

We report experimental observation of the refraction and re ection of propagating magnetostatic spin waves crossing a 90-degree domain wall (DW) in terms of time-resolved magneto-optical imaging. Due to the magnetization rotation across the…

Other Condensed Matter · Physics 2020-04-22 Tomosato Hioki , Rei Tsuboi , Tom. H. Johansen , Yusuke Hashimoto , Eiji Saitoh

We have investigated numerically the field-driven propagation of perpendicularly magnetized ferromagnetic layers. It was then compared to the historical one-dimensional domain wall (DW) propagation model widely used in spintronics studies…

Materials Science · Physics 2018-03-01 L. Thevenard , C. Gourdon , S. Haghgoo , J-P. Adam , H. J. von Bardeleben , A. Lemaître , W. Schoch , A. Thiaville

Spin wave nonreciprocity in domain walls (DWs) allows for unidirectional signal processing in reconfigurable magnonic circuits. Using scanning transmission x-ray microscopy (STXM), we examined coherently-excited magnons propagating in…

We develop an all electrical experiment to perform the broadband phase-resolved spectroscopy of propagating spin waves in micrometer sized thin magnetic stripes. The magnetostatic surface spin waves are excited and detected by scaled down…

Mesoscale and Nanoscale Physics · Physics 2016-08-03 Florin Ciubotaru , Thibaut Devolder , Mauricio Manfrini , Christoph Adelmann , Iuliana Radu

We present a detailed investigation of the magnetization dynamics in Co/Ag nanodots, which due to their size can support standing spin-wave (SSW) modes with complex spectral responses. To interpret the experimentally measured broadband…

We propose to use a soft/hard exchange-spring coupling bilayer magnetic structure to introduce a narrow channel for spin-wave propagation. We show by micromagnetic simulations that broad-band Damon-Eshbach geometry spin waves can be…

Spin-wave based transmission and processing of information is a promising emerging nano-technology that can help overcome limitations of traditional electronics based on the transfer of electrical charge. Among the most important challenges…

Mesoscale and Nanoscale Physics · Physics 2023-10-05 K. O. Nikolaev , S. R. Lake , G. Schmidt , S. O. Demokritov , V. E. Demidov

We study the propagation of plane waves in an unbounded body of a saturated ferromagnetoelastic solid. The equations by Tiersten for small fields superposed on finite initial fields in a saturated ferromagnetoelastic material are employed,…

Applied Physics · Physics 2023-07-19 Qingguo Xia , Jianke Du , Jiashi Yang

Spin waves are excitations in ferromagnetic media that have been proposed as information carriers in hybrid spintronic devices with much lower operation power than conventional charge-based electronics. Their wave nature can be exploited in…

Transmission of microwave spin waves through a microstructured magnonic crystal in the form of a permalloy waveguide of a periodically varying width was studied experimentally and theoretically. The spin wave characteristics were measured…

Mesoscale and Nanoscale Physics · Physics 2011-07-06 A. V. Chumak , P. Pirro , A. A. Serga , M. P. Kostylev , R. L. Stamps , H. Schultheiss , K. Vogt , S. J. Hermsdoerfer , B. Laegel , P. A. Beck , B. Hillebrands

Spin waves are promising information carriers which can be used in modern magnonic devices, characterized by higher performance and lower energy consumption than presently used electronic circuits. However, before practical application of…

Mesoscale and Nanoscale Physics · Physics 2019-03-05 M. Mailyan , P. Gruszecki , O. Gorobets , M. Krawczyk

We report a study on the field-driven propagation of vortex-like domain walls in ferromagnetic nanotubes. This particular geometry gives rise to a special feature of the static wall configuration, which significantly influences its…

Mesoscale and Nanoscale Physics · Physics 2016-08-14 Ming Yan , Christian Andreas , Attila Kákay , Felipe Garcia-Sanchez , Riccardo Hertel