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The motion of magnetic domain walls in ultrathin magnetic heterostructures driven by current via the spin Hall torque is described. We show results from perpendicularly magnetized CoFeB|MgO heterostructures with various heavy metal…

Materials Science · Physics 2015-03-26 Jacob Torrejon , Masamitsu Hayashi

We calculate the interaction between two magnetic domain walls during their current-induced motion. This interaction produces a separation-dependent resistance and also a differential velocity, causing domains in motion to experience an…

Mesoscale and Nanoscale Physics · Physics 2011-11-28 E. A. Golovatski , M. E. Flatté

The dynamics of magnetic skyrmion driven by spin-polarized current is theoretically studied in the chiral ferromagnetic film with spatially modulated Dzyaloshinskii-Moriya interaction. Three cases including linear, sinusoidal, and periodic…

Mesoscale and Nanoscale Physics · Physics 2019-01-09 Liping Zhou , Ren Qin , Ya-qing Zheng , Yong Wang

Current-induced domain wall motion in the presence of the Dzyaloshinskii-Moriya interaction (DMI) is experimentally and theoretically investigated in heavy-metal/ferromagnet bilayers. The angular dependence of the current-induced torque and…

Theoretically, we study the dynamics of a current induced domain wall in the bi-layer structure consists of a ferromagnetic layer and a non-magnetic metal layer with strong spin-orbit coupling in the presence of spin-Hall effect. The…

Materials Science · Physics 2015-05-21 R. Arun , P. Sabareesan , M. Daniel

The recent experimental demonstration of spin-polarized supercurrents offer a venue for establishment of a superconducting analogue to conventional spintronics. Whereas domain wall motion in purely magnetic structures is a well-studied…

Superconductivity · Physics 2015-06-18 Jacob Linder , Klaus Halterman

Antiferromagnetic spintronics is an emerging research field which aims to utilize antiferromagnets as core elements in spintronic devices. A central motivation toward this direction is that antiferromagnetic spin dynamics is expected to be…

We study the magnetic properties of perpendicularly magnetised Pt/Co/Ir thin films and investigate the domain wall creep method of determining the interfacial Dzyaloshinskii-Moriya (DM) interaction in ultra-thin films. Measurements of the…

Mesoscale and Nanoscale Physics · Physics 2018-04-20 Philippa M. Shepley , Harry Tunnicliffe , Kowsar Shahbazi , Gavin Burnell , Thomas A. Moore

Spin canting and complex spin textures in antiferromagnetic materials can often be described in terms of Dzyaloshinskii-Moriya interactions (DMI). Values for DMI parameters are not easily measurable directly, and often inferred from other…

Materials Science · Physics 2021-11-24 Jephthah Iyaro , Igor Proskurin , Robert L. Stamps

The current-driven domain wall motion in a ratchet memory due to spin-orbit torques is studied from both full micromagnetic simulations and the one dimensional model. Within the framework of this model, the integration of the anisotropy…

Applied Physics · Physics 2017-05-03 Luis Sánchez-Tejerina , Óscar Alejos , Eduardo Martínez , Víctor Raposo

We generalize domain-wall dynamics to the case of translationally noninvariant ferromagnetic nanowires. The obtained equations of motion make the description of the domain-wall propagation more realistic by accounting for the variations…

Mesoscale and Nanoscale Physics · Physics 2012-06-13 O. A. Tretiakov , Y. Liu , Ar. Abanov

The dynamics of metastable magnetic domain walls in straight ferromagnetic nanowires under spin waves, external magnetic fields, and current induced spin transfer torque are studied by micromagnetic simulations. It is found that in contrast…

Materials Science · Physics 2015-05-30 Mahdi Jamali , Kyung-Jin Lee , Hyunsoo Yang

We present an analytical theory to describe three-dimensional magnetic textures in perpendicularly magnetized magnetic multilayers that arise in the presence of magnetostatic interactions and the Dzyaloshinskii-Moriya interaction (DMI). We…

Materials Science · Physics 2018-09-06 Ivan Lemesh , Geoffrey S. D. Beach

Controlling magnetism using voltage is highly desired for applications, but remains challenging due to fundamental contradiction between polarity and magnetism. Here we propose a mechanism to manipulate magnetic domain walls in…

Materials Science · Physics 2021-03-22 Jun Chen , Shuai Dong

Analytical multi-domain solutions to the dynamical (Landau-Lifshitz-Gilbert) equation of a one-dimensional ferromagnet including an external magnetic field and spin-polarized electric current are found using the Hirota bilinearization…

Mesoscale and Nanoscale Physics · Physics 2011-09-13 Andrzej Janutka

We derive a phenomenological theory of current-induced staggered magnetization dynamics in antiferromagnets. The theory captures the reactive and dissipative current-induced torques and the conventional effects of magnetic fields and…

Mesoscale and Nanoscale Physics · Physics 2011-03-11 Kjetil M. D. Hals , Yaroslav Tserkovnyak , Arne Brataas

We address the dynamics of magnetic domain walls in ferromagnetic nanowires under the influence of external time-dependent magnetic fields. We report a new exact spatiotemporal solution of the Landau-Lifshitz-Gilbert equation for the case…

Materials Science · Physics 2010-04-13 Arseni Goussev , JM Robbins , Valeriy Slastikov

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 dynamics of current-induced motion of a magnetic domain wall in a quasi-one-dimensional ferromagnet with both easy-axis and easy-plane anisotropy, is studied. We pay a special attention to the case of a sharp domain wall, and calculate…

Materials Science · Physics 2009-11-11 V. K. Dugaev , V. R. Vieira , P. D. Sacramento , J. Barnas , M. A. N. Araujo , J. Berakdar

We consider a twisted magnetic bilayer subject to the perpendicular electric field. The interplay of induced Dzyaloshinskii - Moriya interaction and spatially varying moir\'e exchange potential results in complex non-collinear magnetic…

Mesoscale and Nanoscale Physics · Physics 2023-08-11 Polina Shaban , Igor Lobanov , Valerii Uzdin , Ivan Iorsh