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相关论文: Mechanical Actuation of Magnetic Domain-Wall Motio…

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The spin wave transportation through a transverse magnetic domain wall (DW) in a magnetic nanowire is studied. It is found that spin wave passes through a DW without reflection. A magnon, the quantum of the spin wave, carries opposite spins…

介观与纳米尺度物理 · 物理学 2011-10-24 P. Yan , X. S. Wang , X. R. Wang

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 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

We microscopically derive transport equations for the conduction electrons in ferromagnetic materials with an inhomogeneous magnetization profile. Our quantum kinetic approach includes elastic scattering and anisotropic spin-flip scattering…

介观与纳米尺度物理 · 物理学 2013-05-29 Christian Wickles , Wolfgang Belzig

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 gives a pedagogical introduction to the mechanics of ferromagnetic solitons. We start with the dynamics of a single spin and develop all the tools required for the description of the dynamics of solitons in a ferromagnet.

介观与纳米尺度物理 · 物理学 2024-10-15 Se Kwon Kim , Oleg Tchernyshyov

We consider a wire consisting of a conducting ferromagnetic layer and an insulating antiferromagnetic layer that are coupled. The ferromagnet hosts a domain wall, which is dynamically driven by a charge current. We show that for a specific…

介观与纳米尺度物理 · 物理学 2025-12-15 A. L. Bassant , R. A. Duine

Cylindrical magnetic nanowires have been proposed as a means of storing and processing information in a 3D medium, based on the motion of domain walls~(DWs). Introducing short chemical modulations in such wires would allow for reliable…

We develop a systematic asymptotic description for domain wall motion in one-dimensional magnetic nanowires under the influence of small applied magnetic fields and currents and small material anisotropy. The magnetization dynamics, as…

材料科学 · 物理学 2013-10-17 Arseni Goussev , Ross G. Lund , JM Robbins , Valeriy Slastikov , Charles Sonnenberg

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

We derive a phenomenological theory of current-induced staggered magnetization dynamics in antiferromagnets. The theory captures the reactive and dissipative current-induced torques and the conventional effects of magnetic fields and…

介观与纳米尺度物理 · 物理学 2011-03-11 Kjetil M. D. Hals , Yaroslav Tserkovnyak , Arne Brataas

Control of magnetic domain wall motion holds promise for efficient manipulation and transfer of magnetically stored information. Thermal magnon currents, generated by temperature gradients, can be used to move magnetic textures, from domain…

The current-driven domain wall motion along two exchange-coupled ferromagnetic layers with perpendicular anisotropy is studied by means of micromagnetic simulations and compared to the conventional case of a single ferromagnetic layer. Our…

介观与纳米尺度物理 · 物理学 2018-01-24 Oscar Alejos , Victor Raposo , Luis Sanchez-Tejerina , Riccardo Tomasello , Giovanni Finocchio , Eduardo Martinez

We derive the equations of motion of a Domain Wall in a thin-film magnet coupled to the surface states of a Topological Insulator in the presence of of both an electric field along the Domain Wall and a magnetic field perpendicular to the…

介观与纳米尺度物理 · 物理学 2015-07-10 Yago Ferreiros , Alberto Cortijo

Due to the difficulty in detecting and manipulating magnetic states of antiferromagnetic materials, studying their switching dynamics using electrical methods remains a challenging task. In this work, by employing heavy metal/rare…

材料科学 · 物理学 2020-01-03 Saima A Siddiqui , Jiahao Han , Joseph T Finley , Caroline A Ross , Luqiao Liu

We propose a Hamiltonian dynamics formalism for the current and magnetic field driven dynamics of ferromagnetic and antiferromagnetic domain walls in one dimensional systems. To demonstrate the power of this formalism, we derive Hamilton…

介观与纳米尺度物理 · 物理学 2017-05-12 Davi R. Rodrigues , Karin Everschor-Sitte , Oleg A. Tretiakov , Jairo Sinova , Ar. Abanov

We have investigated dynamic behaviors of the magnetic domain wall under perpendicular magnetic field pulses in ferromagnetic nanowires using micromagnetic simulations. It has been found that the perpendicular magnetic field pulse can…

介观与纳米尺度物理 · 物理学 2020-03-26 Hong-Guang Piao , Dong-Hyun Kim , Je-Ho Shim , Li Qing Pan

A self-contained theory of the domain wall dynamics in ferromagnets under finite electric current is presented. The current is shown to have two effects; one is momentum transfer, which is proportional to the charge current and wall…

介观与纳米尺度物理 · 物理学 2016-08-31 Gen Tatara , Hiroshi Kohno

Propagation of the magnetization waves along domain walls (2D magnons) in a superconducting ferromagnet has been studied theoretically. The magnetostatic fields (long-range dipole-dipole interaction) have a crucial effect on the spectrum of…

超导电性 · 物理学 2019-10-04 N. A. Logoboy , E. B. Sonin

Switching in magnetic materials gives rise to rich physical phenomena and lies at the heart of their technological applications. Although domain wall motion in ferro- and antiferromagnets has been studied, in spiral magnets it is still…

强关联电子 · 物理学 2024-02-19 Francesco Foggetti , Margherita Parodi , Naoto Nagaosa , Sergey Artyukhin