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The resonant eigenmodes of a nitrogen-implanted iron {\alpha}'-FeN characterized by weak stripe domains are investigated by Brillouin light scattering and broadband ferromagnetic resonance experiments, assisted by micromagnetic simulations.…

Mesoscale and Nanoscale Physics · Physics 2017-08-15 S. Camara , S. Tacchi , L. -C. Garnier , M. Eddrief , F. Fortuna , G. Carlotti , M. Marangolo

We report a stable magnetic domain wall in a uniform ferromagnetic spin-1 condensate, characterized by the magnetization having a dark soliton profile with nonvanishing superfluid density. We find exact stationary solutions for a particular…

Quantum Gases · Physics 2021-04-21 Xiaoquan Yu , P. B. Blakie

The ferrimagnets, such as GdxFeCo(1-x), can produce ultrafast magnetic switching and oscillation due to the strong exchange field. The two-sublattices macrospin model has been widely used to explain the experimental results. However, it…

Mesoscale and Nanoscale Physics · Physics 2022-11-23 Xue Zhang , Baofang Cai , Jie Ren , Zhengping Yuan , Zhengde Xu , Yumeng Yang , Gengchiau Liang , Zhifeng Zhu

We consider a variational model for magnetoelastic solids in the large-strain setting with the magnetization field defined on the unknown deformed configuration. Through a simultaneous linearization of the deformation and sharp-interface…

Analysis of PDEs · Mathematics 2025-07-21 Marco Bresciani , Manuel Friedrich

An asymptotic equation of motion for the pattern interface in the domain-forming reaction-diffusion systems is derived. The free boundary problem is reduced to the universal equation of non-local contour dynamics in two dimensions in the…

patt-sol · Physics 2009-10-30 C. B. Muratov

We study transport through ballistic and diffuse ferromagnetic domain walls in a two-band Stoner model with a rotating magnetization direction. For a ballistic domain wall, the change in the conductance due to the domain wall scattering is…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Arne Brataas , Gen Tatara , Gerrit E. W. Bauer

A phenomenological theory of rigid and saturated ferromagnetic conductors is constructed from a four-continuum model consisting of a rigid lattice continuum, a bound charge continuum for polarization, a circulating current continuum for…

Materials Science · Physics 2023-06-21 Jiashi Yang

The impact of current on static and kinetic depinning fields of a domain wall in an one dimensional ferromagnetic nanostrip is investigated by solving the Landau-Lifshitz-Gilbert equation with adiabatic and non-adiabatic spin-transfer…

Materials Science · Physics 2023-07-19 R. Arun , P. Sabareesan , M. Daniel

The influence of a spin-polarized current on long ferromagnetic nanostripes is studied numerically. The current flows perpendicularly to the stripe. The study is based on the Landau-Lifshitz phenomenological equation with the…

Mesoscale and Nanoscale Physics · Physics 2015-06-16 Oleksii M. Volkov , Volodymyr P. Kravchuk , Denis D. Sheka , Franz G. Mertens , Yuri Gaididei

Magnetic domain wall (DW) motion induced by a localized Gaussian temperature profile is studied in a Permalloy nanostrip within the framework of the stochastic Landau-Lifshitz-Bloch equation. The different contributions to thermally induced…

Mesoscale and Nanoscale Physics · Physics 2017-02-23 Simone Moretti , Victor Raposo , Eduardo Martinez , Luis Lopez-Diaz

This paper reports the solution of the equation of motion for a domain wall in a magnetic material which exhibits high magneto-crystalline anisotropy. Starting from the Landau-Lifschitz-Gilbert equation for field-induced motion, we solve…

Other Condensed Matter · Physics 2008-12-10 M. C. Hickey

Sequences based on the Distant Dipolar Field (DDF) have shown great promise for novel spectroscopy and imaging. Unless spatial variation in the longitudinal magnetization, M_{z}(s), is eliminated by relaxation, diffusion, or spoiling…

Medical Physics · Physics 2019-10-24 Curtis A. Corum , Arthur F. Gmitro

In thin ferromagnetic films, the predominance of the magnetic shape anisotropy leads to in-plane magnetizations. The simplest domain wall in this geometry is the one-dimensional Neel wall that connects two magnetizations of opposite sign by…

Analysis of PDEs · Mathematics 2010-06-25 Alexander Huber

We investigate the influence of periodic surface roughness in thin ferromagnetic films on shape anisotropy and magnetization behavior inside the ferromagnet. Starting from the full micromagnetic energy and using methods of homogenization…

Mathematical Physics · Physics 2017-11-22 Massimiliano Morini , Valeriy Slastikov

We investigate theoretically the dynamics of magnetization coupled to the surface Dirac fermions of a three dimensional topological insulator, by deriving the Landau-Lifshitz-Gilbert (LLG) equation in the presence of charge current. Both…

Mesoscale and Nanoscale Physics · Physics 2014-11-20 Takehito Yokoyama , Jiadong Zang , Naoto Nagaosa

The purpose of this article is to develop a systematic approach to the solution of the Landau-Lifshitz equation in terms of the magnon wave function {\psi} (r) and apply it to physical phenomena in a thin ferromagnetic film. This article…

Mesoscale and Nanoscale Physics · Physics 2023-01-05 Gang Li , Valery Pokrovsky

We examine skyrmionic field configurations on a spherical ferromagnet with large normal anisotropy. Exploiting variational concepts of angular momentum we find a new family of localized solutions to the Landau-Lifshitz equation that are…

Mathematical Physics · Physics 2019-10-02 Christof Melcher , Zisis N. Sakellaris

Magnetic domain patterns under an oscillating field is studied theoretically by using a simple Ising-like model. We propose two ways to investigate the effects of the oscillating field. The first one leads to a model in which rapidly…

Other Condensed Matter · Physics 2009-11-13 Kazue Kudo , Katsuhiro Nakamura

The nonequilibrium magnetic domain structure of growing ultrathin ferromagnetic films with a realistic atomic structure is studied as a function of coverage and temperature. We apply a kinetic Monte Carlo method to a micromagnetic model…

Disordered Systems and Neural Networks · Physics 2009-10-31 R. Brinzanik , P. J. Jensen , K. H. Bennemann

The control of domain walls or spin textures is crucial for spintronic applications of antiferromagnets. Despite many efforts, it has been challenging to directly visualize antiferromagnetic domains or domain walls with nanoscale…

Materials Science · Physics 2020-03-06 Paul M. Sass , Wenbo Ge , Jiaqiang Yan , D. Obeysekera , J. J Yang , Weida Wu
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