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相关论文: Magnetic domain walls displacement : automotion vs…

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Existing data for soft magnetic materials of critical current for domain-wall motion, wall speed driven by a magnetic field, and wall electrical resistance, show that all three observable properties are related through a single parameter:…

介观与纳米尺度物理 · 物理学 2009-11-11 L. Berger

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…

Control of magnetic domain wall movement by the spin-polarized current looks promising for creation of a new generation of magnetic memory devices. A necessary condition for this is the domain wall shift by a low-density current. Here I…

介观与纳米尺度物理 · 物理学 2014-03-11 Vladimir L. Korenev

Many future concepts for spintronic devices are based on the current-driven motion of magnetic domain walls through nanowires. Consequently a thorough understanding of the domain wall mobility is required. However, the magnitude of the…

介观与纳米尺度物理 · 物理学 2020-12-24 J. Leliaert , B. Van de Wiele , A. Vansteenkiste , L. Laurson , G. Durin , L. Dupré , B. Van Waeyenberge

We study the effect of disorder on the dynamics of a transverse domain wall in ferromagnetic nanostrips, driven either by magnetic fields or spin-polarized currents, by performing a large ensemble of GPU-accelerated micromagnetic…

介观与纳米尺度物理 · 物理学 2012-10-29 Ben Van de Wiele , Lasse Laurson , Gianfranco Durin

Ultrafast dynamics of antiferromagnetic materials is an appealing feature for novel spintronic devices. Several experiments have shown that both, the static states and the dynamical behavior of the antiferromagnetic order, are strictly…

介观与纳米尺度物理 · 物理学 2024-01-24 Luis Sanchez-Tejerina , Vito Puliafito , Pedram Khalili Amiri , Mario Carpentieri , Giovanni Finocchio

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…

介观与纳米尺度物理 · 物理学 2015-06-11 Jacob Linder

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…

介观与纳米尺度物理 · 物理学 2016-03-30 O. A. Tretiakov , Ar. Abanov

We consider the dynamics of polarization of a single domain wall in a magnetic nanowire, which is strongly pinned by impurities. In this case the equation of motion for the polarization parameter does not include any other dynamical…

介观与纳米尺度物理 · 物理学 2015-10-16 N. Sedlmayr , V. Dugaev , J. Berakdar

The dynamics of a magnetic domain wall in a semi circular nanowire loop is studied by an analytical model and micromagnetic simulations. We find a damped sinusoidal oscillation of the domain wall for small displacement angles around its…

材料科学 · 物理学 2011-03-25 Mahdi Jamali , Kyung-Jin Lee , Hyunsoo Yang

Numerical simulations of domain wall propagation in thin nanotubes when an external magnetic field is applied along the nanotube axis have shown an unexpected behavior described as a transition from a linear to a magnonic regime. As the…

介观与纳米尺度物理 · 物理学 2019-10-09 M. C. Depassier

Magnetic domain wall (DW) motion induced by a localized Gaussian temperature profile is studied in a Permalloy nanostrip within the framework of the stochastic Landau-Lifshitz-Bloch equation. The different contributions to thermally induced…

介观与纳米尺度物理 · 物理学 2017-02-23 Simone Moretti , Victor Raposo , Eduardo Martinez , Luis Lopez-Diaz

Magnetic domain walls are pinned strongly by abrupt changes in magnetic anisotropy. When driven into oscillation by a spin-polarized current, locally pinned domain walls can be exploited as tunable sources of short-wavelength spin waves.…

介观与纳米尺度物理 · 物理学 2018-08-29 Pavel Baláž , Sampo J. Hämäläinen , Sebastiaan van Dijken

We use spin-torque resonance to probe simultaneously and separately the dynamics of a magnetic domain wall and of magnetic domains in a nanostripe magnetic tunnel junction. Thanks to the large associated resistance variations we are able to…

The effect of damping-like spin-orbit torque (DL SOT) on magnetic domain walls (DWs) in in-plane magnetised soft tracks is studied analytically and with micromagnetic simulations. We find that DL SOT drives vortex DWs, whereas transverse…

材料科学 · 物理学 2020-10-02 Ryuhei Kohno , João Sampaio , Stanislas Rohart , André Thiaville

We study spin motive forces, i.e, spin-dependent forces, and voltages induced by time-dependent magnetization textures, for moving magnetic vortices and domain walls. First, we consider the voltage generated by a one-dimensional…

其他凝聚态物理 · 物理学 2013-05-29 M. E. Lucassen , G. C. F. L. Kruis , R. Lavrijsen , H. J. M. Swagten , B. Koopmans , R. A. Duine

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…

介观与纳米尺度物理 · 物理学 2009-11-11 Jun-ichiro Ohe , Bernhard Kramer

The dynamics of transverse Neel domain wall in a ferromagnetic nanostrip in the presence of driving field, current and transverse magnetic field is investigated by the Landau-Lifshitz-Gilbert(LLG) equation with the adiabatic and…

材料科学 · 物理学 2015-03-19 R. Arun , P. Sabareesan , M. Daniel

Understanding and manipulating nanoscale domain wall (DW) dynamics is a central topic in magnetism and spintronics for its promising applications in logic and memory devices. In most magnetic systems, inertia affects only transient DW…

介观与纳米尺度物理 · 物理学 2026-03-20 K. Y. Jing , X. R. Wang , H. Y. Yuan

The dynamic behaviors of magnetic domain walls have significant implications for developing advanced spintronic devices. In this study, we investigate the intriguing resonance phenomenon within the magnetic domain wall structure and its…

材料科学 · 物理学 2023-07-27 Ganghwi Kim , Dae-Han Jung , Hee-Sung Han , Ki-Suk Lee