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相关论文: Field-Driven Domain-Wall Dynamics in GaMnAs Films …

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An antiferromagnetic domain wall in a thermal gradient is found to experience a force towards colder regions upon the application of a uniform magnetic field along the easy axis. This force increases with the strength of the applied field…

介观与纳米尺度物理 · 物理学 2020-10-21 R. Yanes , M. Rodriguez Rosa , L. Lopez-Diaz

The domain configuration of 50 nm thick La0.7SrMnO3 films has been directly investigated using scanning electron microscopy with polarization analysis (SEMPA), with magnetic contrast obtained without the requirement for prior surface…

Electric control of multiple domain walls (DWs) motion is demonstrated by Pt/Co/Pt nanotracks with perpendicular magnetic anisotropy. Due to the weak microstructural disorders with small DW propagation field, the purely current-driven DW…

介观与纳米尺度物理 · 物理学 2015-05-19 Kab-Jin Kim , Jae-Chul Lee , Sang-Jun Yun , Gi-Hong Gim , Kang-Soo Lee , Sug-Bong Choe , Kyung-Ho Shin

We have investigated the domain wall resistance for two types of domain walls in a (Ga,Mn)As Hall bar with perpendicular magnetization. A sizeable positive intrinsic DWR is inferred for domain walls that are pinned at an etching step, which…

It is well documented that subjecting perpendicular magnetic films which exhibit the interfacial Dzyaloshinskii-Moriya interaction (DMI) to an in-plane magnetic field results in a domain wall (DW) energy, $\sigma$, that is highly…

材料科学 · 物理学 2017-07-19 Price Pellegren , Derek Lau , Vincent Sokalski

We have a choice of methods for examining domains at the surface of a ferromagnet that depend on probing the stray field distribution, but these methods do not work in antiferromagnets or compensated ferrimagnets, which produce no stray…

材料科学 · 物理学 2018-12-14 K. E. Siewierska , N. Teichert , R. Schäfer , J. M. D. Coey

Magnetic field driven domain wall velocities in [Co/Ni] based multilayers thin films have been measured using polar magneto-optic Kerr effect microscopy. The low field results are shown to be consistent with the universal creep regime of…

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

The propagation of domain walls in a ferromagnetic film is largely determined by domain wall pinning at defects in the material. In this letter we map the effective potential landscape for domain wall pinning in Permalloy films by raster…

介观与纳米尺度物理 · 物理学 2016-06-15 Robert Badea , Jesse Berezovsky

Domain-wall dynamics in ferroelectric materials are strongly position-dependent since each polar interface is locked into a unique local microstructure. This necessitates spatially resolved studies of the wall-pinning using scanning-probe…

材料科学 · 物理学 2025-06-02 Kamyar Barakati , Yu Liu , Hiroshi Funakubo , Sergei V. Kalinin

We explore the magnetic-field-driven motion of domain walls with different chiralities in thin ferromagnetic films made of Pt/Co/Pt, Au/Co/Pt, and Pt/Co/Au. From the analysis of domain wall dynamics, we extract parameters characterizing the…

介观与纳米尺度物理 · 物理学 2020-11-04 P. Géhanne , S. Rohart , A. Thiaville , V. Jeudy

Magnetic nano-objects possess great potential for more efficient data processing, storage and neuromorphic type of applications. Using high perpendicular magnetic anisotropy synthetic antiferromagnets in the form of multilayer-based…

We present a method to map the saturation magnetization of soft ultrathin films with perpendicular anisotropy, and we illustrate it to assess the compositional dependence of the magnetization of CoFeB(1 nm)/MgO films. The method relies on…

介观与纳米尺度物理 · 物理学 2015-06-16 N. Vernier , J. P. Adam , S. Eimer , G. Agnus , T. Devolder , T. Hauet , B. Ockert , D. Ravelosona

Compensated ferrimagnets are promising materials for fast spintronic applications based on domain wall motion as they combine the favourable properties of ferromagnets and antiferromagnets. They inherit from antiferromagnets immunity to…

We simulate automotion, the spontaneous transport of a magnetic domain wall under the influence of demagnetization and magnetic anisotropy, in nanoscale spintronic interconnects. In contrast to spin transfer driven magnetic domain wall…

介观与纳米尺度物理 · 物理学 2015-06-17 Dmitri E. Nikonov , Sasikanth Manipatruni , Ian A. Young

We study the ultra slow domain wall motion in ferromagnetic thin films driven by a weak magnetic field. Using time resolved magneto-optical Kerr effect microscopy, we access to the statistics of the intermittent thermally activated domain…

无序系统与神经网络 · 物理学 2018-12-10 Matías Pablo Grassi , Alejandro B. Kolton , Vincent Jeudy , Alexandra Mougin , Sebastian Bustingorry , Javier Curiale

The influence of gate voltage, temperature and magnetic field on domain wall (DW) creep dynamics is investigated in Pt/Co/GdOx films with perpendicular magnetic anisotropy and imaged by a scanning magneto-optical Kerr effect technique. The…

材料科学 · 物理学 2012-10-25 Uwe Bauer , Satoru Emori , Geoffrey S. D. Beach

We present an analytical theory of domain wall tilt due to a transverse in-plane magnetic field in a ferromagnetic nanostrip with out-of-plane anisotropy and Dzyaloshinskii-Moriya interaction (DMI). The theory treats the domain walls as…

介观与纳米尺度物理 · 物理学 2017-10-17 Cyrill B. Muratov , Valeriy V. Slastikov , Alexander G. Kolesnikov , Oleg A. Tretiakov

A small fraction of phosphorus (up to 10 %) was incorporated in ferromagnetic (Ga,Mn)As epilayers grown on a GaAs substrate. P incorporation allows reducing the epitaxial strain or even change its sign, resulting in strong modifications of…

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…