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We study the motion of several types of domain wall profiles in spin-orbit coupled magnetic nanowires and also the influence of spin-orbit interaction on the ferromagnetic resonance of uniform magnetic films. We extend previous studies by…

Mesoscale and Nanoscale Physics · Physics 2013-08-28 Jacob Linder , Mohammad Alidoust

It has recently been proposed that spin-transfer torques in magnetic systems with anisotropic exchange can be strongly enhanced, reducing the characteristic current density with up to four orders of magnitude compared to conventional…

Mesoscale and Nanoscale Physics · Physics 2013-06-14 Henrik Enoksen , Asle Sudbø , Jacob Linder

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

We investigate the domain wall dynamics of a ferromagnetic wire under the combined influence of a spin-polarized current and magnonic spin-transfer torque generated by an external field, taking also into account Rashba spin-orbit coupling…

Mesoscale and Nanoscale Physics · Physics 2015-06-11 Jacob Linder

Within linear continuum theory, no magnetic texture can propagate faster than the maximum group velocity of its spin waves. Here we report a transient regime due to the appearance of additional antiferromagnetic textures that breaks the…

Mesoscale and Nanoscale Physics · Physics 2020-12-10 Rubén M. Otxoa , P. E. Roy , R. Rama-Eiroa , K. Y. Giuslienko , J. Wunderlich

In our numerical study, we identify the best conditions for efficient domain wall motion by spin-orbit torques originating from the Spin Hall effect or Rashba effect. We demonstrate that the effect depends critically on the domain wall…

Materials Science · Physics 2013-01-31 A. V. Khvalkovskiy , V. Cros , D. Apalkov , V. Nikitin , M. Krounbi , K. A. Zvezdin , A. Anane , J. Grollier , A. Fert

Currents induce magnetization torques via spin-transfer when the spin angular momentum is conserved or via relativistic spin-orbit coupling. Beyond simple models, the relationship between material properties and spin-orbit torques is not…

Mesoscale and Nanoscale Physics · Physics 2013-08-27 Kjetil M. D. Hals , Arne Brataas

Current-induced dynamics of twisted domain walls and skyrmions in ferromagnetic perpendicularly magnetized multilayers is studied through three-dimensional micromagnetic simulations and analytical modeling. It is shown that such systems…

Materials Science · Physics 2019-10-17 Ivan Lemesh , Geoffrey S. D. Beach

We present time-resolved measurements of the displacement of magnetic domain-walls (DWs) driven by vertical spin-polarized currents in track-shaped magnetic tunnel junctions. In these structures we observe very high DW velocities (600 m/s)…

Magnetic nanowires supporting field- and current-driven domain wall motion are envisioned for new methods of information storage and processing. A major obstacle for their practical use is the domainwall velocity, which is traditionally…

Mesoscale and Nanoscale Physics · Physics 2014-06-13 M. Kuteifan , M. V. Lubarda , S. Fu , R. Chang , M. A. Escobar , S. Mangin , E. E. Fullerton , V. Lomakin

In conventional domain wall systems the aim of a high domain wall velocity may be hindered by the occurrence of a Walker breakdown at comparably low current density. We show how a Rashba interaction can stabilize the domain wall dynamics…

Mesoscale and Nanoscale Physics · Physics 2015-06-18 Martin Stier , Marcus Creutzburg , Michael Thorwart

We demonstrate the possibility to drive an antiferromagnet domain-wall at high velocities by field-like N\'{e}el spin-orbit torques. Such torques arise from current-induced local fields that alternate their orientation on each sub-lattice…

Mesoscale and Nanoscale Physics · Physics 2016-07-06 O. Gomonay , T. Jungwirth , J. Sinova

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

Spin-orbit torque in magnetic domain walls was investigated by solving the Pauli-Schr\"{o}dinger equation for the itinerant electrons. The Rashba interaction considered is derived from the violation of inversion symmetry at interfaces…

Mesoscale and Nanoscale Physics · Physics 2019-08-21 D. Wang , Yan Zhou

The spin-orbit torque device is promising as a candidate for next generation magnetic memory, while the static in-plane field needed to induce deterministic switching is a main obstacle for its application in highly integrated circuits.…

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

Spin-orbit torques promise ultra-efficient magnetization switching used for advanced devices based on emergent quasi-particles such as domain walls and skyrmions. Recently, the spin structure dynamics, materials and systems with tailored…

Using the Lagrangian formalism, we solve analytically the equations of motion for current-induced domain-wall dynamics in a ferromagnet with Rashba spin-orbit coupling. An exact solution for the domain wall velocity is provided, including…

Mesoscale and Nanoscale Physics · Physics 2015-06-15 Jacob Linder

Spin-orbit torques, which utilize spin currents arising from the spin-orbit coupling, offer a novel method to electrically switch the magnetization with perpendicular anisotropy. However, the necessity of an external magnetic field to…

Materials Science · Physics 2018-07-18 Jong Min Lee , Kaiming Cai , Guang Yang , Yang Liu , Rajagopalan Ramaswamy , Pan He , Hyunsoo Yang

We theoretically investigate dynamics of antiferromagnetic domain walls driven by spin-orbit torques in antiferromagnet/heavy metal bilayers. We show that spin-orbit torques drive antiferromagnetic domain walls much faster than…

Materials Science · Physics 2016-08-24 Takayuki Shiino , Se-Hyeok Oh , Paul M. Haney , Seo-Won Lee , Gyungchoon Go , Byong-Guk Park , Kyung-Jin Lee
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