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相关论文: Synthesizing Skyrmion Molecules in Fe-Gd Thin Film…

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Facing the ever-growing demand for data storage will most probably require a new paradigm. Magnetic skyrmions are anticipated to solve this issue as they are arguably the smallest spin textures in magnetic thin films in nature. We designed…

We study the equilibrium and dynamical properties of skyrmions in thin films of chiral magnets with oblique magnetic field. The shape of an individual skyrmion is non-circular and the skyrmion density decreases with the tilt angle from the…

材料科学 · 物理学 2015-11-11 Shi-Zeng Lin , Avadh Saxena

Magnetic skyrmions are small swirling topological defects in the magnetization texture stabilized by the protection due to their topology. In most cases they are induced by chiral interactions between atomic spins existing in…

材料科学 · 物理学 2017-12-21 Albert Fert , Nicolas Reyren , Vincent Cros

This study elucidates the intriguing phenomenon of inverse thermal anisotropy in cadmium magnesium oxide (CdMgO) thin films, characterized by cross-plane thermal conductivity being greater than in-plane thermal conductivity, essential for…

Magnetic skyrmions are topological spin textures that hold great promise as nanoscale information carriers in non-volatile memory and logic devices. While room-temperature magnetic skyrmions and their current-induced manipulation were…

Magnetic skyrmions formed at temperatures around room temperature in square-based parallelepiped magnetic FePt nanoparticles with perpendicular magnetocrystalline anisotropy (MCA) were studied during the magnetization reversal using…

介观与纳米尺度物理 · 物理学 2022-09-13 Christos Tyrpenou , Vasileios Stavrou , Leonidas N. Gergidis

A new paradigm is required to facilitate the demand for the huge data storage capacity and faster data processing in the future. Nano structures such as magnetic skyrmions have been predicted to address this issues as these vortex…

材料科学 · 物理学 2017-03-21 Sarmita Majumder , Priyamvada Jadaun , Tanmay Pramanik , Sanjay K. Banerjee

Amorphous TbFeCo thin films sputter deposited at room temperature on thermally oxidized Si substrate are found to exhibit strong perpendicular magnetic anisotropy (PMA). Atom probe tomography (APT), scanning transmission electron microscopy…

材料科学 · 物理学 2016-01-20 Xiaopu Li , Chung T. Ma , Jiwei Lu , Arun Devaraj , Steven R. Spurgeon , Ryan B. Comes , S. Joseph Poon

The microscopic magnetic properties of high-quality GdN thin films have been investigated by electron spin resonance (ESR) and ferromagnetic resonance (FMR) measurements. Detailed temperature dependence ESR measurements have shown the…

Domain structures in CoFeB-MgO thin films with a perpendicular easy magnetization axis were observed by magneto-optic Kerr-effect microscopy at various temperatures. The domain wall surface energy was obtained by analyzing the spatial…

材料科学 · 物理学 2012-02-24 M. Yamanouchi , A. Jander , P. Dhagat , S. Ikeda , F. Matsukura , H. Ohno

We characterize skyrmions in ultrathin ferromagnetic films as local minimizers of a reduced micromagnetic energy appropriate for quasi two-dimensional materials with perpendicular magnetic anisotropy and interfacial Dzyaloshinskii-Moriya…

偏微分方程分析 · 数学 2022-08-02 Anne Bernand-Mantel , Cyrill B. Muratov , Theresa M. Simon

We demonstrated that thick Permalloy films exhibiting a weak growth-induced perpendicular magnetic anisotropy can be employed as an ideal test system for the investigation of gyration dynamics in topologically trivial and non-trivial…

The effect of the Dzyaloshinsky-Moriya interaction on the magnetic structure of an ordered FePt monolayer deposited on Pt (111) surface has been investigated. In the ground state, the pronounced anisotropic geometry of the FePt layer with…

介观与纳米尺度物理 · 物理学 2015-08-03 S. Polesya , S. Mankovsky , S. Bornemann , D. Ködderitzsch , J. Minár , H. Ebert

Magnetic skyrmions form in chiral multilayers from the shrinking or fission of elongated stripe textures. Here we report an experimental and theoretical study of the temperature dependence of this stripe-to-skyrmion transition in…

介观与纳米尺度物理 · 物理学 2022-04-22 Xiaoye Chen , Edwin Chue , Jian Feng Kong , Hui Ru Tan , Hang Khume Tan , Anjan Soumyanarayanan

In this article we use chiral domain walls to manipulate and trap magnetic skyrmion quasi-particles in chiral magnetic materials such as ultrathin Co/Pt films. The magnetic skyrmions can be orientated such that their interaction with domain…

介观与纳米尺度物理 · 物理学 2025-02-14 Paul Leask

A model is studied for the theoretical description of nanoscale magnetic films with high perpendicular anisotropy. In the model the magnetic film is described in terms of single domain magnetic grains with Ising-like behavior, interacting…

统计力学 · 物理学 2016-08-31 U. Nowak

Ne\'el skyrmions originate from interfacial Dzyaloshinskii Moriya interaction (DMI). Recent studies have explored using thin-film ferromagnets and ferrimagnets to host Ne\'el skyrmions for spintronic applications. However, it is unclear if…

介观与纳米尺度物理 · 物理学 2019-07-02 Chung Ting Ma , Yunkun Xie , Howard Sheng , Avik W. Ghosh , S. Joseph Poon

The transport response of dipole skyrmions in amorphous centrosymmetric Fe/Gd multilayer is investigated by temperature and field-dependent resistivity measurements collected in three current and magnetic field configurations. It is shown…

材料科学 · 物理学 2022-08-19 Sergio Montoya , Marko Lubarda , Vitaliy Lomakin

The effect of random competing single-ion anisotropies in antiferromagnets was studied using epitaxial Mn$_x$Ni$_{1-x}$F$_2$ antiferromagnetic thin film alloys grown via molecular beam epitaxy. The crystal structure of this material is…

材料科学 · 物理学 2023-09-11 Ryan Van Haren , Nessa Hald , David Lederman

Topologically nontrivial magnetic textures such as skyrmions offer promising opportunities for spintronic applications. In recent years, it has been shown that the magnetic properties of layered materials can be affected by depositing…