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The control of domain walls or spin textures is crucial for spintronic applications of antiferromagnets. Despite many efforts, it has been challenging to directly visualize antiferromagnetic domains or domain walls with nanoscale…

材料科学 · 物理学 2020-03-06 Paul M. Sass , Wenbo Ge , Jiaqiang Yan , D. Obeysekera , J. J Yang , Weida Wu

Domain walls in antiferromagnets under a spin-polarized current present dynamical behavior that is not observed in ferromagnets, and it is tunable by the current polarization. Precessional dynamics is obtained for perpendicular spin…

材料科学 · 物理学 2026-02-02 George Theodorou , Stavros Komineas

We theoretically study the antiferromagnetic domain wall motion actuated by an inhomogeneous external magnetic field. The Lagrangian and the equations of motion of antiferromagnetic spins under an inhomogeneous magnetic field are derived,…

介观与纳米尺度物理 · 物理学 2021-02-03 Jotaro J. Nakane , Hiroshi Kohno

Spin waves in antiferromagnets are linearly or circularly polarized. Depending on the polarization, traversing spin waves alter the staggered field in a qualitatively different way. We calculate the drift velocity of a moving domain wall as…

介观与纳米尺度物理 · 物理学 2014-04-11 Erlend Grytli Tveten , Alireza Qaiumzadeh , Arne Brataas

Spin wave and magnetic domain wall are two of basic excitations in magnetic systems, and their spatiotemporal interplay encodes rich information of underlying magnetic interactions. In synthetic antiferromagnets, the domain wall acquires an…

介观与纳米尺度物理 · 物理学 2025-09-03 Jin Lan , Yang Zhang

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

The influence of the curvature on the dynamical properties of transversal domain walls in a thin antiferromagnetic wire is studied theoretically. Equations of motion for antiferromagnetic domain wall are obtained within the collective…

强关联电子 · 物理学 2022-02-16 Kostiantyn V. Yershov

This paper addressses the kinetics and dynamics of a family of domain wall solutions along classical antiferromagnetic Heisenberg spin chains at low energies. The equation of motion is derived and found to have long range position- and…

材料科学 · 物理学 2007-05-23 Raphael Blumenfeld

We develop a theory to compute the domain-wall magnetoresistance (DWMR) in antiferromagnetic (AFM) metals with different spin structures. In the diffusive transport regime, the DWMR can be either {\it negative} or positive depending on the…

介观与纳米尺度物理 · 物理学 2020-11-16 Jun-Hui Zheng , Arne Brataas , Mathias Kläui , Alireza Qaiumzadeh

We theoretically study a ferrimagnetic domain-wall motion driven by a rotating magnetic field. We find that, depending on the magnitude and the frequency of the rotating field, the dynamics of a ferrimagnetic domain wall can be classified…

介观与纳米尺度物理 · 物理学 2021-12-08 Munsu Jin , Ik-Sun Hong , Duck-Ho Kim , Kyung-Jin Lee , Se Kwon Kim

The recently proposed dynamical multiferroic effect describes the generation of magnetization from temporally varying electric polarization. Here, we show that the effect can lead to a magnetic field at moving ferroelectric domain walls,…

We study the domain wall motion in a disordered weak ferromagnet, induced by injecting a spin current from a strong ferromagnet. Starting from the spin diffusion equation describing the spin accumulation in the weak ferromagnet, we…

介观与纳米尺度物理 · 物理学 2020-04-29 Faluke Aikebaier , Tero T. Heikkilä

The nonlinear dynamics of a transverse domain wall (TDW) in Permalloy and Nickel nanostrips with two artificially patterned pinning centers is studied numerically up to rf frequencies. The phase diagram frequency - driving amplitude shows a…

介观与纳米尺度物理 · 物理学 2016-04-18 A. Pivano , V. O. Dolocan

Domain wall (DW) dynamics in antiferromagnetic (AFM) systems offer the advantages over their ferromagnetic counterparts of having faster and more energy efficient manipulation due to the absence of net magnetization, leading to reduced…

In this work, we study the antiferromagnetic (AFM) spin dynamics in heterostructures which consist of two kinds of AFM layers. Our micromagnetic simulations demonstrate that the AFM domain-wall (DW) can be driven by the other one (driven by…

应用物理 · 物理学 2018-09-12 Y. L. Zhang , Z. Y. Chen , Z. R. Yan , D. Y. Chen , Z. Fan , M. H. Qin

In this work, we study the microwave field driven antiferromagnetic domain wall motion in an antiferromagnetic nanowire, using the numerical calculations based on a classical Heisenberg spin model. We show that a proper combination of a…

应用物理 · 物理学 2018-06-12 Z. Y. Chen , Z. R. Yan , Y. L. Zhang , M. H. Qin , Z. Fan , X. B. Lu , X. S. Gao , J. M. Liu

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…

The control of magnetic domain walls is essential for the magnetic-based memory and logic applications. As an elementary excitation of magnetic order, spin wave is capable of moving magnetic domain walls just as the conducting electric…

材料科学 · 物理学 2018-10-18 Weichao Yu , Jin Lan , Jiang Xiao

Antiferromagnets offer remarkable promise for future spintronics devices, where antiferromagnetic order is exploited to encode information. The control and understanding of antiferromagnetic domain walls (DWs) - the interfaces between…

In this work, we derive the Landau-Lifshitz-Bloch equation accounting for the multi-domain antiferromagnetic (AFM) lattice at finite temperature, in order to investigate the domain wall (DW) motion, the core issue for AFM spintronics. The…

材料科学 · 物理学 2019-07-03 Z. Y. Chen , Z. R. Yan , M. H. Qin , J. M. Liu
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