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Related papers: Field- and current-driven magnetic domain-wall inv…

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We present a micromagnetic study of the current-induced domain wall motion in perpendicularly magnetized Pt/Co/AlOx racetracks. We show that the domain wall velocity depends critically on the tilt angle of the wall relative to the current…

Mesoscale and Nanoscale Physics · Physics 2018-12-27 Manuel Baumgartner , Pietro Gambardella

The geometry and morphology of magnetic domain walls (DWs) are closely related to their dynamics when driven by external forces. Under some reliable approximations DWs can be considered self-affine interfaces, so universal laws govern their…

Disordered Systems and Neural Networks · Physics 2023-12-29 P. Domenichini , G. Pasquini , M. G. Capeluto

The precise manipulation of transverse magnetic domain walls in finite/infinite nanowires with artificial defects under the influence of very short spin-polarized current pulses is investigated. We show that for a classical $3d$ ferromagnet…

Mesoscale and Nanoscale Physics · Physics 2018-01-09 A. Pivano , V. O. Dolocan

A domain wall (DW) in a nanowire can propagate under a longitudinal magnetic field by emitting spin waves (SWs). We numerically investigated the properties of SWs emitted by the DW motion, such as frequency and wavenumber, and their…

Mesoscale and Nanoscale Physics · Physics 2015-06-22 X. S. Wang , X. R. Wang

The dynamics of magnetic domain walls along ferromagnetic strips with spatially modulated perpendicular magnetic anisotropy is theoretically studied by means of micromagnetic simulations. Ferromagnetic layers with a periodic sawtooth…

Materials Science · Physics 2018-06-19 Luis Sánchez-Tejerina , Óscar Alejos , Víctor Raposo , Eduardo Martínez

Thermally activated domain-wall (DW) motion driven by magnetic field and electric current is investigated experimentally in out-of-plane magnetized Pt(Co/Pt)$_3$ multilayers. We directly extract the thermal activation energy barrier for DW…

Materials Science · Physics 2014-11-21 Satoru Emori , Chinedum K. Umachi , David C. Bono , Geoffrey S. D. Beach

We present an analytical calculation of the velocity of a single 180 degree domain wall in a magnetic structure with reduced thickness and/or lateral dimension under the combined action of an external applied magnetic field and an…

Materials Science · Physics 2018-07-26 A. Mougin , M. Cormier , J. P. Adam , P. J. Metaxas , J. Ferre

The magnetic textures of Weyl semimetals are embedded into their topological structure and interact dynamically with it. Here, we examine electric field-induced structural phase transitions in domain walls mediated by the spin transfer…

Materials Science · Physics 2023-07-20 Shiva Heidari , Reza Asgari , Dimitrie Culcer

The interfacial Dzyaloshinskii-Moriya interaction (DMI) can be exploited in magnetic thin films to realize lateral chirally coupled systems, providing a way to couple different sections of a magnetic racetrack and realize interconnected…

Mesoscale and Nanoscale Physics · Physics 2024-10-10 Guillaume Beaulieu , Zhaochu Luo , Víctor Raposo , Laura J. Heyderman , Pietro Gambardella , Eduardo Martínez , Aleš Hrabec

The recent observation of current-induced domain wall (DW) motion with large velocity in ultrathin magnetic wires has opened new opportunities for spintronic devices. However, there is still no consensus on the underlying mechanisms of DW…

The discovery of magnetism in two-dimensional (2D) van der Waals (vdW) materials has flourished a new endeavour of fundamental problems in magnetism as well as potential applications in computing, sensing and storage technologies. Of…

Mesoscale and Nanoscale Physics · Physics 2020-11-04 Ignacio M. Alliati , Richard F. L. Evans , Kostya S. Novoselov , Elton J. G. Santos

We theoretically study the motion of a magnetic domain wall induced by transverse elastic waves in a one-dimensional magnetic wire, which respects both rotational and translational symmetries. By invoking the conservation of the associated…

Mesoscale and Nanoscale Physics · Physics 2016-12-07 Se Kwon Kim , Daniel Hill , Yaroslav Tserkovnyak

Since its proposal, the idea to vastly increase data storage density with a magnetic non-volatile 3D shift-register has sustained interest in current-induced domain wall (DW) motion. So far, experimental efforts have focused on flat…

We present an alternative mechanism to control the domain wall motion, whose directions are manipulated by the amplitude of electrical currents when modulating the ratio of D/A (constants of Dzyaloshinskii-Moriya interaction over exchange…

In most ferromagnets the magnetization rotates from one domain to the next with no preferred handedness. However, broken inversion symmetry can lift the chiral degeneracy, leading to topologically-rich spin textures such as spin-spirals and…

Materials Science · Physics 2016-01-29 Satoru Emori , Uwe Bauer , Sung-Min Ahn , Eduardo Martinez , Geoffrey S. D. Beach

The magnetostatic interaction between magnetic domain walls (DWs) in adjacent nanotracks has been shown to produce strong inter-DW coupling and mutual pinning. In this paper, we have used electrical measurements of adjacent spin-valve…

Materials Science · Physics 2013-04-04 J. Sampaio , L. O'Brien , D. Petit , D. E. Read , E. R. Lewis , H. T. Zeng , L. Thevenard , S. Cardoso , R. P. Cowburn

We found by micromagnetic simulations that the motion of a transverse wall (TW) type domain wall in magnetic thin-film nanostripes can be manipulated via interaction with spin waves (SWs) propagating through the TW. The velocity of the TW…

We carried out measurements of domain wall (DW) velocities driven by magnetic field pulses in symmetric Pt/Co/Pt and asymmetric Pt/Co/AlOx, Pt/Co/GdOx and Pt/Co/Gd trilayers with ultrathin Co layers and perpendicular magnetic anisotropy. In…

Mesoscale and Nanoscale Physics · Physics 2016-04-11 Thai Ha Pham , J. Vogel , J. Sampaio , M. Vaňatka , J. -C. Rojas , M. Bonfim , D. S. Chaves , F. Choueikani , P. Ohresser , E. Otero , A. Thiaville , S. Pizzini

We describe a field-driven domain wall creep-based method for the quantification of interfacial Dzyaloshinskii-Moriya interactions (DMI) in perpendicularly magnetized thin films. The use of only magnetic fields to drive wall motion removes…

We represent the results of micromagnetic modeling and experimental magnetic force microscopy investigations of domain wall (DW) pinning-depinning effects in the hybrid systems consisting of ferromagnetic nanowire (NW) and two ferromagnetic…

Mesoscale and Nanoscale Physics · Physics 2011-12-21 V. L. Mironov , O. L. Ermolaeva , E. V. Skorohodov , A. Yu. Klimov
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