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相关论文: Current driven domain wall dynamics in ferrimagnet…

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We demonstrate experimentally dynamic interface binding in a system consisting of two coupled ferromagnetic layers. While domain walls in each layer have different velocity-field responses, for two broad ranges of the driving field, H,…

材料科学 · 物理学 2010-06-15 P. J. Metaxas , R. L. Stamps , J. P. Jamet , J. Ferré , V. Baltz , B. Rodmacq , P. Politi

In this work, we propose an approach to modeling ferrimagnets in MuMax3. We show that by specifying two interacting magnetic sublattices as separate layers, it is possible to reproduce a sperimagnetic-like ordering of magnetization. In such…

The nature of the exchange coupling variation in an antiferromagnetic spin-1/2 system can be used to tailor its ground-state properties. In particular, dimerized Heisenberg rings containing domain walls have localized states which can serve…

量子物理 · 物理学 2013-05-29 Vanita Srinivasa , Jeremy Levy

The Barkhausen jumps or avalanches in magnetic domain-walls motion between succesive pinned configurations, due the competition among magnetic external driving force and substrum quenched disorder, appear in bulk materials and thin films.…

材料科学 · 物理学 2015-03-17 R. C. Buceta , D. Muraca

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…

介观与纳米尺度物理 · 物理学 2020-12-10 Rubén M. Otxoa , P. E. Roy , R. Rama-Eiroa , K. Y. Giuslienko , J. Wunderlich

Domain walls are the topological defects that mediate polarization reversal in ferroelectrics, and they may exhibit quite different geometric and electronic structures compared to the bulk. Therefore, a detailed atomic-scale understanding…

材料科学 · 物理学 2017-01-12 Meng Ye , David Vanderbilt

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…

材料科学 · 物理学 2021-03-22 Jun Chen , Shuai Dong

We report on the controlled switching of domain wall (DW) magnetization in aligned stripe domain structures, stabilized in [Co (0.44 nm)/Pt (0.7 nm)]$_X$ ($X = 48$, 100, 150) multilayers with perpendicular magnetic anisotropy. The switching…

The discovery of magnetism in two-dimensional (2D) van der Waals (vdW) materials has flourished a new endeavour of fundamental problems in magnetism as well as potential applications in computing, sensing and storage technologies. Of…

介观与纳米尺度物理 · 物理学 2020-11-04 Ignacio M. Alliati , Richard F. L. Evans , Kostya S. Novoselov , Elton J. G. Santos

We study current-driven domain-wall (DW) dynamics in antiferromagnets (AFMs) with Dzyaloshinskii-Moriya interaction (DMI). We obtain an exact analytical solution for spiral DW dynamics, applicable to both head-to-head DWs under bulk DMI and…

介观与纳米尺度物理 · 物理学 2026-04-09 Mu-Kun Lee , Rubén M. Otxoa , Masahito Mochizuki

Sliding ferroelectrics built from stacked nonpolar monolayers enable out-of-plane polarization and unconventional switching via interlayer sliding, yet the microscopic sliding dynamics remain unclear. Using machine-learning molecular…

材料科学 · 物理学 2026-04-23 Jia-Wen Li , Sheng Meng , Xinghua Shi , Jin Zhang , Wei-Hai Fang

Spinful superfluids of ultracold atoms are ideal for investigating the intrinsic properties of spin current and texture because they are realized in an isolated, nondissipative system free from impurities, dislocations, and thermal…

量子气体 · 物理学 2022-02-09 Hiromitsu Takeuchi

We present a general approach for studying the dynamics of domain walls in biaxial ferromagnetic stripes with functionally graded Dzyaloshinskii-Moriya interaction (DMI). By engineering the spatial profile of the DMI parameter we propose…

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…

材料科学 · 物理学 2015-05-30 Mahdi Jamali , Kyung-Jin Lee , Hyunsoo Yang

Domain-wall bimerons are composite topological structures formed by embedding bimerons within domain walls in ferromagnets with in-plane anisotropy. These hybrid textures have recently attracted significant attention due to their promise…

介观与纳米尺度物理 · 物理学 2025-05-05 Jiwen Chen , Laichuan Shen , Yan Zhou , Oleg A. Tretiakov , Xiaoguang Li

Of the new types of cryoelectronic devices under development, including phase shifters, giant magnetoresistance switches, diodes, transistors, and memory cells, some are based on hybrid superconductor-normal metal or…

介观与纳米尺度物理 · 物理学 2015-12-07 L. S. Uspenskaya , S. V. Egorov

In this paper, we study the domain wall motion induced by vertical current flow in asymmetric magnetic tunnel junctions. The domain wall motion in the free layer is mainly dictated by the current-induced field-like torque acting on it. We…

介观与纳米尺度物理 · 物理学 2022-02-09 S. Liu , D. J. P. de Sousa , M. Sammon , J. P. Wang , Tony Low

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

The future developments of three-dimensional magnetic nanotechnology require the control of domain wall dynamics by means of current pulses. While this has been extensively studied in planar magnetic strips (planar nanowires), few reports…

Coherent control of domain wall dynamics offers a route to fast manipulation of magnetic textures beyond thermally activated motion. We demonstrate resonant excitation of linear and nonlinear dynamics of a pinned domain wall in a…