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From the pioneering work of Winter [Phys. Rev. 124, 452 (1961)], a magnetic domain wall of Bloch type is known to host a special wall-bound spin-wave mode, which corresponds to spin-waves being channeled along the magnetic texture. Using…

Mesoscale and Nanoscale Physics · Physics 2019-07-24 Yves Henry , Daniel Stoeffler , Joo-Von Kim , Matthieu Bailleul

Spin waves are perturbations in the relative orientation of magnetic moments in a continuous magnetic system, which have been proposed as a new kind of information carrier for spin-based low power applications. For this purpose, a major…

Mesoscale and Nanoscale Physics · Physics 2017-06-20 Michele Voto , Luis Lopez-Diaz , Eduardo Martinez

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

We investigate the magnetization dynamics in circular Permalloy dots with spatially separated magnetic vortices interconnected by domain walls (double vortex state). We identify a novel type of quasi one-dimensional (1D) localised spin wave…

Mesoscale and Nanoscale Physics · Physics 2012-01-04 F. G. Aliev , A. A. Awad , D. Dielman , A. Lara , V. Metlushko , K. Y. Guslienko

We studied magnetization dynamics of a geometrically confined domain wall under dc current by solving simultaneously the Landau-Lifshitz-Gilbert equation and diffusion equation for spin accumulation. We showed that the oscillation motion of…

Mesoscale and Nanoscale Physics · Physics 2009-03-09 Katsuyoshi Matsushita , Jun Sato , Hiroshi Imamura

Domain wall propagation in cylindrical nanowires with modulations of diameter is a key phenomenon to design physics-oriented devices, or a disruptive three-dimensional magnetic memory. This chapter presents a combination of analytical…

Mesoscale and Nanoscale Physics · Physics 2022-06-16 A. De Riz , B. Trapp , J. A. Fernandez-Roldan , Ch. Thirion , J. -Ch. Toussaint , O. Fruchart , D. Gusakova

Domain wall propagation in modulated-diameter cylindrical nanowires is a key phenomenon to be studied with a view to designing three-dimensional magnetic memory devices. This paper presents a theoretical study of transverse domain wall…

Mesoscale and Nanoscale Physics · Physics 2018-07-18 J. A. Fernandez-Roldan , A. De Riz , B. Trapp , C. Thirion , J. -C. Toussaint , O. Fruchart , D. Gusakova

We analyze the propagation of two-dimensional dispersive and relativistic wavepackets localized in the vicinity of the zero level set $\Gamma$ of a domain wall. The main applications we consider are a topologically non-trivial Dirac model…

Analysis of PDEs · Mathematics 2023-12-07 Guillaume Bal

The channeling of spin waves with domain walls in ultrathin ferromagnetic films is demonstrated theoretically and through micromagnetics simulations. It is shown that propagating excitations localized to the wall, which appear in the…

We study the gravitational perturbations of thick domain walls. The refraction index and spin properties of the solutions interior to the wall are analyzed in detail. It is shown that the gravitational waves suffer a refraction process by…

General Relativity and Quantum Cosmology · Physics 2009-11-07 Luis Bento , Jose P. S. Lemos

The calculations of the inelastic spin wave scattering by flexure vibrations of the Bloch domain wall (Winters magnons) in thin magnetic films are presented. The approach is based on the interaction of the propagating spin waves with the…

Mesoscale and Nanoscale Physics · Physics 2019-04-02 N. N. Dadoenkova , Y. S. Dadoenkova , I. L. Lyubchanskii , M. Krawczyk , K. Y. Guslienko

We investigate the intermittency of magnetic turbulence as measured in Reversed Field Pinch plasmas. We show that the Probability Distribution Functions of magnetic field differences are not scale invariant, that is the wings of these…

Plasma Physics · Physics 2007-05-23 V. Carbone , L. Sorriso-Valvo , E. Martines , V. Antoni , P. Veltri

The propagation of a domain wall in a submicron ferromagnetic spin-valve stripe is investigated using giant magnetoresistance. A notch in the stripe efficiently traps an injected wall stopping the domain propagation. The authors show that…

Materials Science · Physics 2008-04-02 J. Briones , F. Montaigne , Daniel Lacour , M. Hehn , M. J. Carey , J. R. Childress

A theory for the spin wave eigenmodes of a Dzyaloshinskii domain wall is presented. These walls are N\'eel-type domain walls that can appear in perpendicularly-magnetized ultrathin ferromagnets in the presence of a sizeable…

Materials Science · Physics 2015-07-07 Pablo Borys , Felipe Garcia-Sanchez , Joo-Von Kim , Robert L. Stamps

Spin waves can induce domain wall motion in ferromagnets. We derive the equations of motion for a transverse domain wall driven by spin waves. Our calculations show that the magnonic spin-transfer torque does not cause rotation-induced…

Mesoscale and Nanoscale Physics · Physics 2017-12-06 Vetle Risinggård , Erlend Grytli Tveten , Arne Brataas , Jacob Linder

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

The interaction between the propagating spin waves and the current driven motion of a transverse domain wall in magnetic nanowires is studied by micromagnetic simulations. If the speed of domain walls due to current induced spin transfer…

Materials Science · Physics 2011-03-25 Mahdi Jamali , Hyunsoo Yang , Kyung-Jin Lee

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

Spin waves have the potential to be used as a new platform for data transfer and processing as they can reach wavelengths in the nanometer range and frequencies in the terahertz range. To realize a spin-wave device, it is essential to be…

We present a finite-difference micromagnetic approach for determining the normal modes of spin-waves propagating in extended magnetic films and strips, which is based on the linearized Landau-Lifshitz equation and uses the dynamic matrix…

Mesoscale and Nanoscale Physics · Physics 2016-11-21 Yves Henry , Olga Gladii , Matthieu Bailleul
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