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相关论文: Spin-orbit-coupling induced domain-wall resistance…

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We numerically compute current-induced spin-transfer torques for antiferromagnetic domain walls, based on a linear response theory in a tight-binding model. We find that, unlike for ferromagnetic domain wall motion, the contribution of…

介观与纳米尺度物理 · 物理学 2020-04-24 Hyeon-Jong Park , Yunboo Jeong , Se-Hyeok Oh , Gyungchoon Go , Jung Hyun Oh , Kyoung-Whan Kim , Hyun-Woo Lee , Kyung-Jin Lee

Using transmission electron microscopy, we investigate the thermally activated motion of domain walls (DWs) between two positions in permalloy (Ni80Fe20) nanowires at room temperature. We show that this purely thermal motion is well…

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…

The dynamics of the domain wall (DW) in a biaxial ferromagnet interacting with a spin-polarized current are described by sine-gordon (SG) equation coupled with Gilbert damping term in this paper. Within our frame-work of this model, we…

介观与纳米尺度物理 · 物理学 2012-08-09 Xin Liu , Xiong-Jun Liu , Mo-Lin Ge

We study the spin-transfer torque and magnetoresistance of a ferromagnet$\mid$superconductor$\mid$ferromagnet spin-valve, allowing for an arbitrary magnetization misorientation and treating both s-wave and d-wave symmetries of the…

超导电性 · 物理学 2015-05-13 J. Linder , T. Yokoyama , A. Sudbø

The magnetic textures of Weyl semimetals are embedded into their topological structure and interact dynamically with it. Here, we examine electric field-induced structural phase transitions in domain walls mediated by the spin transfer…

材料科学 · 物理学 2023-07-20 Shiva Heidari , Reza Asgari , Dimitrie Culcer

We study theoretically domain wall (DW) magnons-elementary collective excitations of magnetic DWs -- in easy-axis layered van der Waals (vdW) antiferromagnets, where they behave as normal modes of coupled spin superfluids. We uncover that,…

介观与纳米尺度物理 · 物理学 2022-05-02 Mohammad Mushfiqur Rahman , Avinash Rustagi , Yaroslav Tserkovnyak , Pramey Upadhyaya

An anomalous (inverse) spin accumulation in the nonmagnetic spacer may build up when the spin valve consists of magnetic films having different spin symmetries. This leads to wavy-like dependence of spin-transfer torque on the angle between…

介观与纳米尺度物理 · 物理学 2010-04-12 E. Jaromirska , P. Balaz , L. Lopez Diaz , J. Barnas

We investigated the microwave-induced DC response of spin wave resonance (SWR) in a permalloy thin strip via electrical detection. Our experimental results obtained by sweeping the external field reveal that: 1. the amplitude of SWR signals…

材料科学 · 物理学 2013-08-15 Ziqian Wang , Wei Lu , Bogen Wang

Dynamics of magnetization domain walls (DWs) in thin ferromagnetic nanotubes subject to longitudinal external fields is addressed analytically in the regimes of strong and weak penalization. Explicit functional forms of the DW profiles and…

材料科学 · 物理学 2014-04-14 Arseni Goussev , JM Robbins , Valeriy Slastikov

We experimentally investigate spin-polarized transport between a ferromagnetic Ni electrode and a surface of Weyl semimetal, realized in a thick WTe$_2$ single crystal. For highly-transparent Ni-WTe$_2$ planar junctions, we observe…

介观与纳米尺度物理 · 物理学 2019-04-03 A. Kononov , O. O. Shvetsov , A. V. Timonina , N. N. Kolesnikov , E. V. Deviatov

Ultrafast optical control of magnetic textures offers new opportunities for energy-efficient, high-speed spintronic devices. While uniform magnetization reversal via all-optical switching is well established, the formation dynamics of…

应用物理 · 物理学 2025-07-29 Yuzhu Fan , Gaolong Cao , Junlin Wang , Sheng Jiang , Jing Wu , Johan Åkerman , Jonas Weissenrieder

We report the results of experimental investigations of controlled domain wall (DW) pinning in a ferromagnetic nanowire (NW) by stray fields of two uniformly magnetized bistable ferromagnetic nanoparticles (NPs) placed on either side of the…

介观与纳米尺度物理 · 物理学 2018-07-04 V. L. Mironov , O. L. Ermolaeva , E. V. Skorohodov

We show that nano-scale variations of the order parameter in strongly-correlated systems can induce local spatial regions such as domain walls that exhibit electronic properties representative of a different, but nearby, part of the phase…

强关联电子 · 物理学 2009-11-10 M. S. Rzchowski , Robert Joynt

${\rm SrRuO_3}$ is a 4d itinerant ferromagnet (T$_{c}$ $\sim $150 K) with stripe domain structure. Using high-quality thin films of SrRuO$_{3}$ we study the resistivity induced by its very narrow ($\sim 3$ nm) Bloch domain walls,…

强关联电子 · 物理学 2009-11-10 Michael Feigenson , Lior Klein , James W. Reiner , Malcolm R. Beasley

We study theoretically the spin transfer effect on a domain wall in disordered weak ferromagnets. We have identified the adiabatic condition for the disordered case as $\lambda \gg \lambda_{\rm D}\equiv \sqrt{{\hbar D}/{\spol}}$, where $D$…

介观与纳米尺度物理 · 物理学 2015-05-14 Yoshisuke Ban , Gen Tatara

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…

介观与纳米尺度物理 · 物理学 2013-08-28 Jacob Linder , Mohammad Alidoust

Efficient electrical manipulation of domain walls is key to developing magnetic devices with fast switching capabilities and low energy consumption. Here we demonstrate Bloch-type domain wall velocities exceeding 1 km s$^{-1}$ in the…

Electronic transport through thin and laterally constrained domain walls in ferromagnetic nanojunctions is analyzed theoretically. The description is formulated in the basis of scattering states. The resistance of the domain wall is…

材料科学 · 物理学 2009-11-10 V. K. Dugaev , J. Berakdar , J. Barnas

The interaction of propagating dipolar spin waves with magnetic domain walls is investigated in square-shaped microstructures patterned from the Heusler compound Co$_2$Mn$_{0.6}$Fe$_{0.4}$Si. Using magnetic force microscopy, the reversible…

介观与纳米尺度物理 · 物理学 2015-06-09 P. Pirro , T. Koyama , T. Brächer , T. Sebastian , B. Leven , B. Hillebrands