Results 21 to 30 of about 2,072 (165)

THIN LAYERS IN MICROMAGNETISM [PDF]

open access: yesMathematical Models and Methods in Applied Sciences, 2001
In this paper we study the solutions of micromagnetism equation in thin domain both in the stationary and in the time-dependent case. We prove that the magnetic field induced by the magnetisation behaves like the projection of the magnetic moment on the normal to the domain, both for a flat and a non-flat domain.
openaire   +3 more sources

Large-scale micromagnetics simulations with dipolar interaction using all-to-all communications

open access: yesAIP Advances, 2016
We implement on our micromagnetics simulator low-complexity parallel fast-Fourier-transform algorithms, which reduces the frequency of all-to-all communications from six to two times.
Hiroshi Tsukahara   +8 more
doaj   +1 more source

Field-Driven Magnetic Phase Diagram and Vortex Stability in Fe Nanometric Square Prisms

open access: yesNanomaterials, 2022
In this work, we deal with the zero temperature hysteretic properties of iron (Fe) quadrangular nanoprisms and the size conditions underlying magnetic vortex states formation.
Mauricio Galvis   +2 more
doaj   +1 more source

Dynamics of micromagnetic measurements [PDF]

open access: yesPhysical Review B, 1993
The response of a micromagnetic system to changes in ambient temperature or applied field is studied as a function of the overbarrier relaxation rate and of the intermediate nonequilibrium states through which the system is passing. We first derive an equation for the thermomagnetic curve and the corresponding time-dependent dc susceptibility.
Klik, Ivo   +2 more
openaire   +2 more sources

Finite difference magnetoelastic simulator

open access: yesOpen Research Europe, 2021
We describe an extension of the micromagnetic finite difference simulation software MuMax3 to solve elasto-magneto-dynamical problems.
Frederic Vanderveken   +7 more
doaj   +1 more source

Spin current pumped by confined breathing skyrmion

open access: yesNew Journal of Physics, 2020
Spin pumping is a widely recognized method to generate the spin current in the spintronics, which can be found in varieties of magnetic materials and is acknowledged as a fundamentally dynamic process equivalent to the spin-transfer torque. In this work,
Chunlei Zhang   +6 more
doaj   +1 more source

A Comprehensive Study of Temperature and Its Effects in SOT-MRAM Devices

open access: yesMicromachines, 2023
We employ a fully three-dimensional model coupling magnetization, charge, spin, and temperature dynamics to study temperature effects in spin-orbit torque (SOT) magnetoresistive random access memory (MRAM).
Tomáš Hadámek   +5 more
doaj   +1 more source

Nonlinear Magnon Scattering Mechanism for Microwave Pumping in Magnetic Films

open access: yesIEEE Access, 2020
Magnon scattering enables non-linear microwave devices, such as frequency selective limiters and signal to noise enhancers. It may also impact information transfer within spintronic devices.
Tao Qu   +7 more
doaj   +1 more source

Micromagnetic localization

open access: yesJournal of Applied Physics, 1998
The localization of nucleation modes in inhomogeneous ferromagnets and its influence on the coercivity are investigated. From the formal analogy between quantum mechanics and micromagnetics follows that anisotropy inhomogeneities may cause localization.
openaire   +2 more sources

Local stability and a renormalized Newton Method for equilibrium liquid crystal director modeling [PDF]

open access: yes, 2012
We consider the nonlinear systems of equations that result from discretizations of a prototype variational model for the equilibrium director field characterizing the orientational properties of a liquid crystal material.
Gartland, Jr, E.C., Ramage, Alison
core   +2 more sources

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