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We theoretically study domain wall motion induced by an electric field in the quantum anomalous Hall states on a two-dimensional Kagome lattice with ferromagnetic order and spin-orbit coupling. We show that an electric charge is accumulated…

Mesoscale and Nanoscale Physics · Physics 2019-07-17 Sehoon Kim , Daichi Kurebayashi , Kentaro Nomura

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 antiferromagnetic domain wall dynamics is currently a hot topic in mesoscopic magnetic systems. In this work, it is found that, based on the Thiele approach, the motion of an antiferromagnetic domain wall is described by the Duffing…

Mesoscale and Nanoscale Physics · Physics 2021-01-07 Laichuan Shen , Jing Xia , Motohiko Ezawa , Oleg A. Tretiakov , Guoping Zhao , Yan Zhou

A domain wall in a ferromagnetic one-dimensional nanowire experiences current induced motion due to its coupling with the conduction electrons. When the current is not sufficient to drive the domain wall through the wire, or it is confined…

Mesoscale and Nanoscale Physics · Physics 2012-07-13 Nicholas Sedlmayr , Jamal Berakdar

We study the spin dynamics in antiferromagnetic nanowire under an applied temperature gradient using micromagnetic simulations on a classical spin model with a uniaxial anisotropy. The entropic torque driven domain-wall motion and the…

Computational Physics · Physics 2018-02-21 Zhengren Yan , Zhiyuan Chen , Minghui Qin , Xubing Lu , Xingsen Gao , Junming Liu

Finding a new control parameter for magnetic domain wall (DW) motion in magnetic nanostructures is important in general and in particular for the spintronics applications. Here, we show that a circularly polarized magnetic field (CPMF) at…

Mesoscale and Nanoscale Physics · Physics 2010-01-13 P. Yan , X. R. Wang

In easy-plane ferromagnets, we show that the interplay between a domain wall and a spin wave packet can be formulated as the collision of two massive particles with a gravity-like attraction. In the presence of magnetic dissipation, the…

Mesoscale and Nanoscale Physics · Physics 2022-08-22 Jin Lan , Jiang Xiao

We propose a Hamiltonian dynamics formalism for the current and magnetic field driven dynamics of ferromagnetic and antiferromagnetic domain walls in one dimensional systems. To demonstrate the power of this formalism, we derive Hamilton…

Mesoscale and Nanoscale Physics · Physics 2017-05-12 Davi R. Rodrigues , Karin Everschor-Sitte , Oleg A. Tretiakov , Jairo Sinova , Ar. Abanov

Domain walls are the transition regions between two magnetic domains. These objects have been very relevant during the last decade, not only due to their intrinsic interest in the development of novel spintronics devices but also because of…

Mesoscale and Nanoscale Physics · Physics 2021-05-19 Oscar Alejos , Víctor Raposo , Eduardo Martínez

We theoretically discover possible emergence of reentrant Walker breakdowns for current-driven domain walls in layered antiferromagnets in striking contrast to the unique Walker breakdown in ferromagnets. We reveal that the Lorentz…

Mesoscale and Nanoscale Physics · Physics 2024-04-24 Mu-Kun Lee , Rubén M. Otxoa , Masahito Mochizuki

The compensated magnetic order and characteristic, terahertz frequencies of antiferromagnetic materials makes them promising candidates to develop a new class of robust, ultra-fast spintronic devices. The manipulation of antiferromagnetic…

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

Control of magnetic domain wall motion holds promise for efficient manipulation and transfer of magnetically stored information. Thermal magnon currents, generated by temperature gradients, can be used to move magnetic textures, from domain…

We present a new mechanism for spin-wave excitation using a pinned domain wall which is forced to oscillate at its eigenfrequency and radiates spin waves. The domain wall acts as a frequency doubler, as the excited spin waves have twice the…

We present a circuit model to describe the electron transport through a domain wall in a ferromagnetic nanowire. The domain wall is treated as a coherent 4-terminal device with incoming and outgoing channels of spin up and down and the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Peter E. Falloon , Rodolfo A. Jalabert , Dietmar Weinmann , Robert L. Stamps

Domain-wall skyrmions are magnetic solitons embedded in a domain wall that are topologically equivalent to skyrmions. Here, we theoretically study antiferromagnetic domain-wall skyrmions and their current-driven motion within the…

Mesoscale and Nanoscale Physics · Physics 2025-08-14 Wooyon Kim , Jun Seok Seo , Se Kwon Kim

The spin transfer torque generated by a spin-polarized current can induce the shift of the magnetic domain-wall position. In this work, we study theoretically the current-induced domain-wall motion by using the collective coordinate…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Soon-Wook Jung , Hyun-Woo Lee

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 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

We theoretically investigate the dynamics of atomic domain walls (DWs) in antiferromagnets driven by a spin-orbit field. For a DW with the width of a few lattice constants, we identify a Peierls-like pinning effect, with the depinning field…

Mesoscale and Nanoscale Physics · Physics 2019-08-05 Huanhuan Yang , H. Y. Yuan , Ming Yan , Peng Yan
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