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Related papers: Dynamic Domains in Strongly Driven Ferromagnetic F…

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The paper investigates the influence of the magnetic field on the behavior of 180-degree domain boundaries in a uniaxial ferromagnetic film with inhomogeneous magnetoelectric interaction. It is shown that, depending on the magnitude and…

Materials Science · Physics 2023-05-24 Robert Vakhitov , Rostislav Solonetskiy , Alina Nizyamova

We study the dynamics of a spin-1/2 XXZ chain which is initially prepared in a domain-wall state. We compare the results of time-dependent Density Matrix Renormalization Group simulations with those of an effective description in terms of a…

Statistical Mechanics · Physics 2019-08-30 Grégoire Misguich , Nicolas Pavloff , Vincent Pasquier

Precise modeling of the magnetization dynamics of nanoparticles with finite size effects at fast varying temperatures is a computationally challenging task. Based on the Landau-Lifshitz-Bloch (LLB) equation we derive a coarse grained model…

Materials Science · Physics 2019-08-07 Christoph Vogler , Claas Abert , Florian Bruckner , Dieter Suess

The ferromagnetism of a thin GaMnAs layer with a perpendicular easy anisotropy axis is investigated by means of several techniques, that yield a consistent set of data on the magnetic properties and the domain structure of this diluted…

We revisit the description of ferromagnetic domain wall dynamics through an extended one-dimensional model by allowing flexural distortions of the wall during its motion. This is taken into account by allowing the domain wall center and…

Mesoscale and Nanoscale Physics · Physics 2018-08-29 Rémy Soucaille , Felipe Garcia-Sanchez , Joo-Von Kim , Thibaut Devolder , Jean-Paul Adam

Demagnetization in a thin film due to a terahertz pulse of magnetic field is investigated. Linearized LLG equation in the Fourier space to describe the magnetization dynamics is derived, and spin waves time evolution is studied. Finally,…

Mesoscale and Nanoscale Physics · Physics 2020-05-13 Valentino Scalera , Matthias Hudl , Kumar Neeraj , Salvatore Perna , Massimiliano d'Aquino , Stefano Bonetti , Claudio Serpico

Magnetoelectric coupling in multiferroic heterostructures can produce large lateral modulations of magnetic anisotropy enabling the imprinting of ferroelectric domains into ferromagnetic films. Exchange and magnetostatic interactions within…

Materials Science · Physics 2014-01-17 Kévin J. A. Franke , Sebastiaan van Dijken

Starting from the London - type model we study the domain structures in ferromagnetic superconductors taking account of the nucleation of vortices and antivortices coupled to the magnetic texture. We predict that the coupling between…

Superconductivity · Physics 2014-04-23 I. M. Khaymovich , A. S. Mel'nikov , A. I. Buzdin

We study theoretically the influence of the underlying domain microstructure on the electromechanical properties of ferroelectrics. Our calculations are based on a continuum approach that incorporates the long-range elastic and…

Materials Science · Physics 2007-05-23 Rajeev Ahluwalia , Turab Lookman , Avadh Saxena , Wenwu Cao

We investigated domain kinetics by measuring the polarization switching behaviors of polycrystalline Pb(Zr,Ti)O$_{3}$ films, which are widely used in ferroelectric memory devices. Their switching behaviors at various electric fields and…

Materials Science · Physics 2009-11-13 J. Y. Jo , H. S. Han , J. -G. Yoon , T. K. Song , S. -H. Kim , T. W. Noh

In this paper the thermodynamics of thin ferromagnetic films are studied in the framework of the classical Heisenberg model with uniaxial anisotropy and long--range dipole interaction. The dependence of the order of the reorientation…

Condensed Matter · Physics 2009-10-28 A. Hucht , K. D. Usadel

This article is concerned with the dynamics of magnetic domain walls (DWs) in nanowires as solutions to the classical Landau-Lifschitz-Gilbert equation augmented by a typically non-variational Slonczewski term for spin-torque effects.…

Mathematical Physics · Physics 2020-12-03 Jens D. M. Rademacher , Lars Siemer

We consider periodic domain structures which appear due to the magnetoelastic interaction if the antiferromagnetic crystal is attached to an elastic substrate. The peculiar behavior of such structures in an external magnetic field is…

Materials Science · Physics 2009-11-11 Efim A. Brener , V. I. Marchenko

The knowledge of how the magnetization looks inside a ferromagnet is often hindered by the limitations of the available experimental methods that are sensitive only to the surface regions or limited in spatial resolution. We report the 3D…

To minimize their electrostatic energy, insulating ferroelectric films tend to break up into nanoscale ``Kittel'' domains of opposite polarization that are separated by uncharged 180$^\circ$ domain walls. Here, I report on self-consistent…

Mesoscale and Nanoscale Physics · Physics 2022-10-14 W. A. Atkinson

A 75 nm-thick Fe0.5Pt0.5 film is a ferromagnetic metal showing striped magnetic domains in remanence at room temperature. The magnetoresistance is characterized by varying the external temperature and the in-plane magnetic field intensity,…

Mesoscale and Nanoscale Physics · Physics 2026-05-29 C. P. Quinteros , L. Avilés-Félix , D. Goijman , L. Saba , D. Pérez Morelo , L. Granja , M. Granada , J. Milano

The problem of the observable equilibrium domain structure in pure antiferromagnets (and other thermoelastics) is investigated with the use of continuous elasticity theory. It is shown that completely rigid surface produces the imaginary…

Condensed Matter · Physics 2007-05-23 Helen Gomonay , Vadim Loktev

We present a general approach for studying the dynamics of domain walls in biaxial ferromagnetic stripes with functionally graded Dzyaloshinskii-Moriya interaction (DMI). By engineering the spatial profile of the DMI parameter we propose…

Strongly Correlated Electrons · Physics 2020-06-24 Kostiantyn V. Yershov , Volodymyr P. Kravchuk , Denis D. Sheka , Jeroen van den Brink , Avadh Saxena

It is well-known that in thin ferromagnetic film with a net magnetization perpendicular to the film the collinear arrangement of spins is unstable in an in-plane field $H$ smaller than its saturation value $H_c$. Existence of a stripe phase…

Strongly Correlated Electrons · Physics 2009-05-04 A. V. Syromyatnikov

The ultrafast control of nanoscale spin textures such as magnetic domain walls or skyrmions is essential for advancing high-speed, high-density spintronics. However, imaging their dynamics will require a technique that combines nanometer…