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Related papers: One-dimensional in-plane edge domain walls in ultr…

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We study the properties of domain walls and domain patterns in ultrathin epitaxial magnetic films with two orthogonal in-plane easy axes, which we call fourfold materials. In these materials, the magnetization vector is constrained to lie…

Analysis of PDEs · Mathematics 2016-04-13 Ross G. Lund , Cyrill B. Muratov

We present an analysis of edge domain walls in exchange-biased ferromagnetic films appearing as a result of a competition between the stray field at the film edges and the exchange bias field in the bulk. We introduce an effective…

Analysis of PDEs · Mathematics 2018-10-05 Ross G. Lund , Cyrill B. Muratov , Valeriy V. Slastikov

We have studied nucleation of magnetic domains and propagation of magnetic domain walls (DWs) induced by pulsed magnetic field in a ferromagnetic film with in-plane uniaxial anisotropy. Different from what have been seen up to now in…

Materials Science · Physics 2020-12-30 Xiaochao Zhou , Nicolas Vernier , Guillaume Agnus , Sylvain Eimer , Ya Zhai

For uniaxial easy axis films, properties of magnetic domains are usually described within the Kittel model, which assumes that domain walls are much thinner than the domains. In this work we present a simple model that includes a proper…

Materials Science · Physics 2015-06-04 F. Virot , L. Favre , R. Hayn , M. D. Kuz'min

We analyze the electric current and magnetic field driven domain wall motion in perpendicularly magnetized ultrathin ferromagnetic films in the presence of interfacial Dzyaloshinskii-Moriya interaction and both out-of-plane and in-plane…

Mesoscale and Nanoscale Physics · Physics 2019-03-27 Valeriy V. Slastikov , Cyrill B. Muratov , Jonathan M. Robbins , Oleg A. Tretiakov

We present a characterization of the domain wall solutions arising as minimizers of an energy functional obtained in a suitable asymptotic regime of micromagnetics for infinitely long thin film ferromagnetic strips in which the…

Analysis of PDEs · Mathematics 2023-06-06 M. Morini , C. B. Muratov , M. Novaga , V. V. Slastikov

We investigated head-to-head domain walls in nanostrips of epitaxial $\mathrm{Fe}_4\mathrm{N}(001)$ thin films, displaying a fourfold magnetic anisotropy. Magnetic force microscopy and micromagnetic simulations show that the domain walls…

We study the domain wall structure in thin uniaxial ferromagnetic films in the presence of an in-plane applied external field in the direction normal to the easy axis. Using the reduced one-dimensional thin film micromagnetic model, we…

Analysis of PDEs · Mathematics 2016-07-19 Cyrill B. Muratov , Xiaodong Yan

Domain structures appear in ultrathin magnetic films, if an easy-axis anisotropy, favouring the direction perpendicular to the film, overcomes the shape anisotropy. We will study the nature of the magnetic ground state and how the different…

Condensed Matter · Physics 2007-05-23 Paolo Politi

We report experimental and theoretical studies of magnetic domain walls in an in-plane magnetized (Ga,Mn)As dilute moment ferromagnetic semiconductor. Our high-resolution electron holography technique provides direct images of domain wall…

We present a detailed analysis of one-dimensional N\'eel walls in thin uniaxial ferromagnetic films in the presence of an in-plane applied external field in the direction normal to the easy axis. Within the reduced one-dimensional thin film…

Analysis of PDEs · Mathematics 2013-10-11 Milena Chermisi , Cyrill B. Muratov

An analytical model for the domain wall structure in ultrathin films with perpendicular easy axis and interfacial Dzyaloshinskii-Moriya interaction, submitted to an arbitrary in-plane magnetic field, is presented. Its solution is simplified…

Mesoscale and Nanoscale Physics · Physics 2021-04-28 Pierre Géhanne , André Thiaville , Stanislas Rohart , Vincent Jeudy

Surface magnetic domains of a UCoGa single crystal during magnetization/demagnetization processes in increasing/decreasing magnetic fields were investigated by means of magnetic-force-microscopy (MFM) images at low temperatures. The…

Materials Science · Physics 2020-02-27 Petr Opletal , Klára Uhlířová , Ivo Kalabis , Vladimír Sechovský , Jan Prokleška

We investigate the scaling of the ground state energy and optimal domain patterns in thin ferromagnetic films with strong uniaxial anisotropy and the easy axis perpendicular to the film plane. Starting from the full three-dimensional…

Analysis of PDEs · Mathematics 2019-05-14 Hans Knüpfer , Cyrill B. Muratov , Florian Nolte

We study a system of Dirac electrons with finite density of charge carriers coupled to an external electromagnetic field in two spatial dimensions, with a domain wall (DW) mass term. The interface between a thin-film ferromagnet and a…

Mesoscale and Nanoscale Physics · Physics 2015-08-19 Yago Ferreiros , F. J. Buijnsters , M. I. Katsnelson

We investigate the formation of stable one-dimensional N\'eel walls in a ferromagnetic slab with finite thickness and finite width. Taking into account the dipolar, the exchange and the uniaxial anisotropic crystalline field interactions,…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Rafael M. Fernandes , Harry Westfahl , Rogério Magalhães-Paniago , Leticia N. Coelho

Due to its non-local nature, calculating the demagnetizing field remains the biggest challenge in understanding domain structures in ferromagnetic materials. Analytical descriptions of demagnetizing effects typically approximate domain…

Materials Science · Physics 2019-10-02 Audun Skaugen , Peyton Murray , Lasse Laurson

Domain wall dynamics in ferromagnets is complicated by internal degrees of freedom of the domain walls. We develop a model of domain walls in disordered thin films with perpendicular magnetic anisotropy capturing such features, and use it…

Statistical Mechanics · Physics 2022-03-08 Audun Skaugen , Lasse Laurson

The permeability is calculated for a thin ferromagnetic film with the stripe domain structure and out-of-plane uniaxial magnetic anisotropy. Analytical expressions for the frequency dependence of components of permeability tensor are…

Materials Science · Physics 2007-05-23 N. A. Buznikov , K. N. Rozanov

Gapless magnons in a plane ferromagnet with normal axis anisotropy are shown to exist besides the usual gapped modes that affect spin dependent transport properties only above a finite temperature. These magnons are one dimensional objects,…

Strongly Correlated Electrons · Physics 2024-08-14 A. Villares-Ferrer , P. F. Farinas , A. O. Caldeira
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