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We present a time-resolved study of the DC-current driven magnetization dynamics in a microstructured Cr/Heusler/Pt waveguide by means of Brillouin light scattering. A reduction of the effective spin-wave damping via the…

Mesoscale and Nanoscale Physics · Physics 2017-09-05 T. Meyer , T. Brächer , F. Heussner , A. A. Serga , H. Naganuma , K. Mukaiyama , M. Oogane , Y. Ando , B. Hillebrands , P. Pirro

We study current-induced dynamics of spin textures in thin magnetic nanowires. We derive effective equations of motion describing the dynamics of the domain-wall soft modes associated with topological defects. Because the magnetic domain…

Mesoscale and Nanoscale Physics · Physics 2016-03-30 O. A. Tretiakov , Ar. Abanov

The magnetization dynamics induced by standing elastic waves excited in a thin ferromagnetic film is described with the aid of micromagnetic simulations taking into account the magnetoelastic coupling between spins and lattice strains. The…

Mesoscale and Nanoscale Physics · Physics 2016-11-10 A. V. Azovtsev , N. A. Pertsev

We use local and global magnetometry measurements to study the influence of magnetic domain width w on the domain-induced vortex pinning in superconducting/ferromagnetic bilayers, built of a Nb film and a ferromagnetic Co/Pt multilayer with…

Superconductivity · Physics 2015-05-28 Marta Z. Cieplak , L. Y. Zhu , Z. Adamus , M. Konczykowski , C. L. Chien

We demonstrate a general and robust method to confine on a plane strongly diffusing submicrometer particles in water by using size tunable magnetic channels. These virtual conduits are realized with pairs of movable Bloch walls (BWs)…

Soft Condensed Matter · Physics 2019-08-15 Pietro Tierno , Tom H. Johansen , Jose M. Sancho

We consider the planar magnonic waveguide with a periodic sequence of antidots forming zig-zag pattern, where two neighboring antidots are shifted towards the opposite edges of the waveguide. This system has a complex base with two antidots…

Mesoscale and Nanoscale Physics · Physics 2017-08-02 Santanu Pan , Jarosław W. Kłos , Szymon Mieszczak , Anjan Barman , Maciej Krawczyk

When magnetic skyrmions move under spin orbit torque in magnetic nanowires, they experience a skyrmion Hall effect, which pushes them towards the nanowire edge where they risk being annihilated; this puts an upper limit on how fast they can…

Mesoscale and Nanoscale Physics · Physics 2020-06-23 Xiangjun Xing , Johan Åkerman , Yan Zhou

The dynamics of a domain wall driven by a spin-polarized current in a mesoscopic system is studied numerically. Spin-mixing in the states of the conduction electrons is fully taken into account. When the Fermi energy of the electrons is…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Jun-ichiro Ohe , Bernhard Kramer

Generation of second-harmonic waves is one of the universal nonlinear phenomena that have found numerous technical applications in many modern technologies, in particular, in photonics. This phenomenon also has great potential in the field…

Mesoscale and Nanoscale Physics · Physics 2024-03-01 K. O. Nikolaev , S. R. Lake , G. Schmidt , S. O. Demokritov , V. E. Demidov

We study the excitation of spin waves in scaled magnetic waveguides using the magnetoelastic effect. In uniformly magnetized systems, normal strains parallel or perpendicular to the magnetization direction do not lead to spin wave…

Mesoscale and Nanoscale Physics · Physics 2017-12-06 Rutger Duflou , Florin Ciubotaru , Adrien Vaysset , Marc Heyns , Bart Soree , Iuliana P. Radu , Christoph Adelmann

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…

A spin wave is the disturbance of intrinsic spin order in magnetic materials. In this paper, a spin wave in the Landau-Lifshitz-Gilbert equation is obtained based on the assumption that the spin wave maintains its shape while it propagates…

Mesoscale and Nanoscale Physics · Physics 2019-10-25 Zhiwei Sun , Jingrun Chen

Atomically-thin van der Waals magnetic materials offer exceptional opportunities to mechanically and electrically manipulate magnetic states and spin textures. The possibility of efficient spin transport in these materials makes them…

Materials Science · Physics 2024-05-17 Verena Brehm , Stefan Stagraczynski , Jozef Barnas , Anna Dyrdal , Alireza Qaiumzadeh

It is a well-established notion that the spin of a magnon should be flipped when it passes through a $180^{\circ}$ domain wall (DW) in both ferromagnets and antiferromagnets, while the magnon spin transport through ferrimagnetic DW is still…

Mesoscale and Nanoscale Physics · Physics 2024-06-14 Zhaozhuo Zeng , Peng Yan

We propose an alternative micromagnetic approach to determine the spin wave dispersion relations in magnonic structures. Characteristic of the method is that a limited area of the system is continuously excited with a spatially uniform…

Mesoscale and Nanoscale Physics · Physics 2014-03-12 Ben Van de Wiele , Federico Montoncello

We have experimentally and numerically investigated the dispersion of collective spin waves prop-agating through arrays of longitudinally magnetized nanowires with periodically modulated width. Two nanowire arrays with single-side…

Mesoscale and Nanoscale Physics · Physics 2017-11-22 G. Gubbiotti , L. L. Xiong , F. Montoncello , A. O. Adeyeye

Spin-wave propagation in an assembly of microfabricated 20 nm thick, 2.5 {\mu}m wide Yttrium Iron Garnet (YIG) waveguides is studied using propagating spin-wave spectroscopy (PSWS) and phase resolved micro-focused Brillouin Light Scattering…

Mesoscale and Nanoscale Physics · Physics 2017-04-05 M. Collet , O. Gladii , M. Evelt , V. Bessonov , L. Soumah , P. Bortolotti , S. O Demokritov , Y. Henry , V. Cros , M. Bailleul , V. E. Demidov , A. Anane

Spin-wave modes are studied under the gradual transition from a flat thin film to a 'full' (one-dimensional) magnonic crystal. For this purpose, the surface of a pre-patterned 36.8 nm thin permalloy film was sequentially ion milled…

An efficient way for the control of spin wave propagation in a magnetic medium is the use of periodic patterns known as magnonic crystals (MCs). However, the fabrication of MCs especially bi-components, with periodicity on nanoscale, is a…

Mesoscale and Nanoscale Physics · Physics 2017-09-20 M. Mruczkiewicz , P. Graczyk , P. Lupo , A. Adeyeye , G. Gubbiotti , M. Krawczyk

Conventional magnonic devices use three classes of magnetostatic waves that require detailed manipulation of magnetization structure that makes the design and the device/circuitry scalability difficult tasks. Here, we demonstrate that…

Mesoscale and Nanoscale Physics · Physics 2017-07-04 X. S. Wang , H. W. Zhang , X. R. Wang