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相关论文: Magnetic vortices as localized mesoscopic domain w…

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We demonstrate a unique prospect for inducing anisotropic vortex pinning and manipulating the directional motion of vortices using the stripe domain patterns of a uniaxial magnetic film in a the superconducting/ferromagnetic hybrid. Our…

超导电性 · 物理学 2009-11-13 V. Vlasko-Vlasov , U. Welp , G. Karapetrov , V. Novosad , A. Belkin , D. Rosenmann , M. Iavarone , W. -K. Kwok

Magnetic domain walls are pinned strongly by abrupt changes in magnetic anisotropy. When driven into oscillation by a spin-polarized current, locally pinned domain walls can be exploited as tunable sources of short-wavelength spin waves.…

介观与纳米尺度物理 · 物理学 2018-08-29 Pavel Baláž , Sampo J. Hämäläinen , Sebastiaan van Dijken

We demonstrate that the stray magnetic field generated beneath magnetic vortex cores can be used to generate nano-scale, localized pinning sites for magnetic domain walls in an underlying, perpendicularly magnetized nanostrip. Moreover, the…

介观与纳米尺度物理 · 物理学 2017-05-24 Aaron C. H. Hurst , Joshua A. Izaac , Fouzia Altaf , Vincent Baltz , Peter J. Metaxas

We theoretically and experimentally analyze the pinning of a magnetic domain wall (DW) at engineered anisotropy variations in Pt/Co/Pt strips with perpendicular magnetic anisotropy. An analytical model is derived showing that a step in the…

介观与纳米尺度物理 · 物理学 2011-12-19 Jeroen H. Franken , Mark Hoeijmakers , Reinoud Lavrijsen , Henk J. M. Swagten

Spintronic devices currently rely on magnetic switching or controlled motion of domain walls by an external magnetic field or spin-polarized current. Achieving the same degree of magnetic controllability using an electric field has…

材料科学 · 物理学 2012-02-14 Tuomas H. E. Lahtinen , Kévin J. A. Franke , Sebastiaan van Dijken

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

A method for deterministic control of the magnetic order parameter using an electrical stimulus is highly desired for the new generation of spintronic and magnetoelectronic devices. Much effort has been focused on magnetic domain-wall…

Spin-orbit torques, which utilize spin currents arising from the spin-orbit coupling, offer a novel method to electrically switch the magnetization with perpendicular anisotropy. However, the necessity of an external magnetic field to…

材料科学 · 物理学 2018-07-18 Jong Min Lee , Kaiming Cai , Guang Yang , Yang Liu , Rajagopalan Ramaswamy , Pan He , Hyunsoo Yang

We report on a method to tune the orientation of in-plane magnetic domains and domain walls in thin ferromagnetic strips by manipulating the magnetic anisotropy. Uniaxial in-plane anisotropy is induced in a controlled way by oblique…

其他凝聚态物理 · 物理学 2007-09-17 S. Cherifi , R. Hertel , A. Locatelli , Y. Watanabe , G. Potdevin , A. Ballestrazzi , M. Balboni , S. Heun

The theory of elasticity and pinning of domain walls in helical magnets is presented. Domain walls perpendicular to the helical axis show non-local elasticity and are marginally pinned by local disorder. Weak anisotropy combined with…

介观与纳米尺度物理 · 物理学 2014-06-03 Bahman Roostaei , Thomas Nattermann

We present a quantitative investigation of magnetic domain wall pinning in thin magnets with perpendicular anisotropy. A self-consistent description exploiting the universal features of the depinning and thermally activated sub-threshold…

介观与纳米尺度物理 · 物理学 2018-08-15 Vincent Jeudy , Rebeca Diaz Pardo , Williams Savero Torres , Sebastian Bustingorry , Alejandro Kolton

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 present a model for current-driven motion of a magnetic domain-wall line, in which the dynamics of the domain wall is equivalent to that of an overdamped vortex line in an anisotropic pinning potential. This potential has both extrinsic…

介观与纳米尺度物理 · 物理学 2009-11-13 R. A. Duine , C. Morais Smith

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…

Stripe domains are studied in perpendicular magnetic anisotropy films nanostructured with a periodic thickness modulation that induces the lateral modulation of both stripe periods and inplane magnetization. The resulting system is the 2D…

The dynamics of magnetic domain walls along ferromagnetic strips with spatially modulated perpendicular magnetic anisotropy is theoretically studied by means of micromagnetic simulations. Ferromagnetic layers with a periodic sawtooth…

材料科学 · 物理学 2018-06-19 Luis Sánchez-Tejerina , Óscar Alejos , Víctor Raposo , Eduardo Martínez

We utilize a focused beam of Ga+ ions to define magnetization pinning sites in a ferromagnetic epilayer of (Ga,Mn)As. The nonmagnetic defects locally increase the magneto-crystalline anisotropy energies, by which a domain wall is pinned at…

介观与纳米尺度物理 · 物理学 2009-11-10 A. W. Holleitner , H. Knotz , R. C. Myers , A. C. Gossard , D. D. Awschalom

Spinmotive force induced by domain wall motion in perpendicularly magnetized nanowires is numerically demonstrated. We show that using nanowires with large magnetic anisotropy can lead to a high stability of spinmotive force under strong…

介观与纳米尺度物理 · 物理学 2018-12-31 Yuta Yamane , Jun'ichi Ieda , Sadamichi Maekawa

The propagation of a domain wall in a submicron ferromagnetic spin-valve stripe is investigated using giant magnetoresistance. A notch in the stripe efficiently traps an injected wall stopping the domain propagation. The authors show that…

材料科学 · 物理学 2008-04-02 J. Briones , F. Montaigne , Daniel Lacour , M. Hehn , M. J. Carey , J. R. Childress

Precise control of magnetic domain formation at the nanoscale remains constrained by stochastic defect-mediated and unstable pinning, limiting scalability and reproducibility in spintronic architectures. Here we demonstrate that spatially…

介观与纳米尺度物理 · 物理学 2026-05-18 Gijs W. A. Simons , Rik F. J. van Haren , Bert Koopmans
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