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相关论文: Current-Induced Dynamics of Chiral Magnetic Struct…

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Magnetic skyrmions, topologically stabilized chiral magnetic textures with particle-like properties have so far primarily been studied statically. Here, we experimentally investigate the dynamics of skyrmion ensembles in metallic thin film…

介观与纳米尺度物理 · 物理学 2024-03-14 Klaus Raab , Maurice Schmitt , Maarten A. Brems , Jan Rothörl , Fabian Kammerbauer , Sachin Krishnia , Mathias Kläui , Peter Virnau

The static and dynamic properties of skyrmions have recently received increased attention due to the potential application of skyrmions as information carriers and for unconventional computing. While the current-driven dynamics has been…

According to the spin-torque model, current-driven magnetic dynamics in ferromagnetic multilayers is determined by the transfer of electron spin perpendicular to the layers' magnetizations. By separating the largest contributions to the…

材料科学 · 物理学 2007-05-23 S. Urazhdin

The competition between the ferromagnetic exchange interaction and anti-symmetric Dzyaloshinskii-Moriya interaction can stabilize a helical phase or support the formation of skyrmions. In thin films of chiral magnets, the current density…

介观与纳米尺度物理 · 物理学 2020-11-11 Jan Masell , Xiuzhen Yu , Naoya Kanazawa , Yoshinori Tokura , Naoto Nagaosa

Manipulation of the domain wall propagation in magnetic wires is a key practical task for a number of devices including racetrack memory and magnetic logic. Recently, curvilinear effects emerged as an efficient mean to impact substantially…

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

The shape instability of magnetic domain walls under current is investigated in a ferromagnetic (Ga,Mn)(As,P) film with perpendicular anisotropy. Domain wall motion is driven by the spin transfer torque mechanism. A current density gradient…

Magnetic skyrmions are chiral spin structures with a whirling configuration. Their topological properties, nanometer size and the fact that they can be moved by small current densities have opened a new paradigm for the manipulation of…

We show that superconducting correlations in the presence of non-zero condensate velocity can mediate the peculiar interaction between localized spins that breaks the global inversion symmetry of magnetic moments. The proposed interaction…

超导电性 · 物理学 2018-11-26 D. S. Rabinovich , I. V. Bobkova , A. M. Bobkov , M. A. Silaev

N\'eel magnetic domain walls that are stabilized by achiral energy terms instead of the usual Dzyaloshinskii-Moriya interaction will be bistable, with the two possible chiral forms being degenerate. Here we focus on the theoretical study of…

介观与纳米尺度物理 · 物理学 2023-09-14 Eloi Haltz , Kévin J. A. Franke , Christopher H. Marrows

We consider a twisted magnetic bilayer subject to the perpendicular electric field. The interplay of induced Dzyaloshinskii - Moriya interaction and spatially varying moir\'e exchange potential results in complex non-collinear magnetic…

介观与纳米尺度物理 · 物理学 2023-08-11 Polina Shaban , Igor Lobanov , Valerii Uzdin , Ivan Iorsh

We study charge and energy transport in a quasi-1D magnetic wire in the presence of magnetic textures. The energy flows can be expressed in a fashion similar to charge currents, leading to new energy-current induced spin torques. In analogy…

介观与纳米尺度物理 · 物理学 2009-10-10 Alexey A. Kovalev , Yaroslav Tserkovnyak

Spin wave, the collective excitation of magnetic order, is one of the fundamental angular momentum carriers in magnetic systems. Understanding the spin wave propagation in magnetic textures lies in the heart of developing pure magnetic…

材料科学 · 物理学 2021-06-09 Jin Lan , Weichao Yu , Jiang Xiao

Spin-orbit spin transfer torque allows an efficient control of magnetization by an in-plane current. Recent experiments found that the spin-orbit torque has strong dependence on the magnetization angle [Garello et al., Nature Nanotechnol.…

材料科学 · 物理学 2016-01-20 Seo-Won Lee , Kyung-Jin Lee

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

The purpose of the research is the construction of the analytical model for description of spin-polarized current-driven ferromagnetic domain wall motion with a skyrmion building block. The dependence of velocity of ferromagnetic domain…

介观与纳米尺度物理 · 物理学 2020-03-30 O. Gorobets , Yu. Gorobets , I. Tiukavkina , R. Gerasimenko

We theoretically investigate the interaction between magnons and a Skyrmion-textured domain wall in a two-dimensional antiferromagnet and elucidate the resultant properties of magnon transport. Using supersymmetric quantum mechanics, we…

介观与纳米尺度物理 · 物理学 2024-07-10 Seungho Lee , Kouki Nakata , Oleg Tchernyshyov , Se Kwon Kim

The realization of chiral spin textures - comprising myriad distinct, nanoscale arrangements of spins with topological properties - has established pathways for engineering robust, energy-efficient and scalable elements for non-volatile…

材料科学 · 物理学 2022-10-31 M. S. Nicholas Tey , Xiaoye Chen , Anjan Soumyanarayanan , Pin Ho

Magnetic skyrmions can be driven by an applied spin-polarized electron current which exerts a spin-transfer torque on the localized spins constituting the skyrmion. However, the longitudinal dynamics is plagued by the skyrmion Hall effect…

介观与纳米尺度物理 · 物理学 2020-05-27 J. Plettenberg , M. Stier , M. Thorwart

Domain walls are the transition regions between two magnetic domains. These objects have been very relevant during the last decade, not only due to their intrinsic interest in the development of novel spintronics devices but also because of…

介观与纳米尺度物理 · 物理学 2021-05-19 Oscar Alejos , Víctor Raposo , Eduardo Martínez