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Spin-polarized electric current exerts torque on local magnetic spins, resulting in magnetic domain-wall (DW) motion in ferromagnetic nanowires. Such current-driven DW motion opens great opportunities toward next-generation magnetic devices…

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

Domain wall (DW) devices have garnered recent interest for diverse applications including memory, logic, and neuromorphic primitives; fast, accurate device models are therefore imperative for large-scale system design and verification.…

Spin dynamics of field-driven domain walls (DWs) guided by Permalloy nanowires are studied by high-speed magneto-optic polarimetry and numerical simulations. DW velocities and spin configurations are determined as functions of longitudinal…

Mesoscale and Nanoscale Physics · Physics 2016-09-05 Jusang Yang , Geoffrey S. D. Beach , Carl Knutson , James L. Erskine

An analytical model was developped to describe the current induced DW dynamics of a Bloch DW in the presence of an external transverse magnetic field. The model takes into account the DW deformation and the magnetization tilting in the…

Materials Science · Physics 2015-06-05 O. Boulle , L. D. Buda-Prejbeanu , M. Miron , G. Gaudin

Despite the relevance of current-induced magnetic domain wall (DW) motion for new spintronics applications, the exact details of the current-domain wall interaction are not yet understood. A property intimately related to this interaction…

Mesoscale and Nanoscale Physics · Physics 2012-02-13 Jeroen H. Franken , Mark Hoeijmakers , Henk J M Swagten , Bert Koopmans

In this work, we study the rotating magnetic field driven domain wall (DW) motion in antiferromagnetic nanowires, using the micromagnetic simulations of the classical Heisenberg spin model. We show that in low frequency region, the rotating…

Computational Physics · Physics 2020-01-22 W. H. Li , Z. Y. Chen , D. L. Wen , D. Y. Chen , Z. Fan , M. Zeng , X. B. Lu , X. S. Gao , M. H. Qin

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

The current-induced motion of a domain wall in a semicircle nanowire with applied Zeeman field is investigated. Starting from a micromagnetic model we derive an analytical solution which characterizes the domain-wall motion as a harmonic…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 Benjamin Krueger , Daniela Pfannkuche , Markus Bolte , Guido Meier , Ulrich Merkt

In this work, we present a theoretical model for domain wall (DW) oscillations in a curved magnetic nanowire with a constant curvature under the action of a uniaxial magnetic field. Our results show that the DW dynamics can be described as…

Mesoscale and Nanoscale Physics · Physics 2023-09-20 G. H. R. Bittencourt , V. L. Carvalho-Santos , D. Altbir , O. Chubykalo-Fesenko , R. Moreno

Current induced domain wall (DW) motion in perpendicularly magnetized nanostripes in the presence of spin orbit torques is studied. We show using micromagnetic simulations that the direction of the current induced DW motion and the…

Materials Science · Physics 2015-06-17 O. Boulle , L. D. Buda-Prejbeanu , E. Jué , I. M. Miron , G. Gaudin

Domain wall (DW) motion is a crucial process involved in magnetization reversal, be it under magnetic field or spin-polarized current stimulus. In most cases DW speed does not exceed $\approx$100m/s and collapses above a given threshold of…

The issue of whether a thermal gradient acts like a magnetic field or an electric current in the domain wall (DW) dynamics is investigated. Broadly speaking, magnetization control knobs can be classified as energy-driving or…

Mesoscale and Nanoscale Physics · Physics 2019-09-04 M. T. Islam , X. S. Wang , X. R. Wang

The influence of gate voltage, temperature and magnetic field on domain wall (DW) creep dynamics is investigated in Pt/Co/GdOx films with perpendicular magnetic anisotropy and imaged by a scanning magneto-optical Kerr effect technique. The…

Materials Science · Physics 2012-10-25 Uwe Bauer , Satoru Emori , Geoffrey S. D. Beach

We report on a quantum description of the domain wall (DW) motion under a spin current. A bound magnon, which is the zero mode of DW, is found to play a dominant role in DW dynamics. The bound magnon acquires its inertia by the hard axis…

Materials Science · Physics 2009-01-21 Tae-Suk Kim , J. Ieda , S. Maekawa

Understanding the domain wall (DW) dynamics in magnetic nanowires (NW) is crucial for spintronic-based applications demanding the use of DWs as information carriers. This work focuses on the dynamics of a DW displacing along a bent NW with…

Mesoscale and Nanoscale Physics · Physics 2022-11-30 G. H. R. Bittencourt , S. Castillo-Sepúlveda , O. Chubykalo-Fesenko , R. Moreno , D. Altbir , V. L. Carvalho-Santos

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 report the direct observation of the current-driven domain wall (DW) motion by magnetic force microscopy in a structured Co/Ni wire with perpendicular magnetic anisotropy. The wire has notches to define the DW position. It is…

The relation between domain wall motion and intensity of driven current is examined in a phenomenological theory where the kinetic energy is expanded as a series of polynomial function of current density just as the Landau phase transition…

Mesoscale and Nanoscale Physics · Physics 2016-01-06 Hao Yu

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…

Mesoscale and Nanoscale Physics · Physics 2024-01-24 Luis Sanchez-Tejerina , Vito Puliafito , Pedram Khalili Amiri , Mario Carpentieri , Giovanni Finocchio