Results 31 to 40 of about 1,299 (132)

Fidimag – A Finite Difference Atomistic and Micromagnetic Simulation Package [PDF]

open access: yesJournal of Open Research Software, 2018
Fidimag is an open-source scientific code for the study of magnetic materials at the nano- or micro-scale using either atomistic or finite difference micromagnetic simulations, which are based on solving the Landau-Lifshitz-Gilbert equation. In addition, it implements simple procedures for calculating energy barriers in the magnetisation through ...
Bisotti, Marc-Antonio   +6 more
openaire   +6 more sources

Fluid‐Induced Magnetic Enhancement in Sandstone Friction Experiments: Implications for Coseismic Fault Temperature Estimates

open access: yesGeophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Constraining peak temperature during seismic slip is essential for quantifying earthquake energy budgets and fault weakening. Rock magnetic methods provide a sensitive means of estimating shear‐induced coseismic temperature rise; however, the role of fluids in friction‐induced magnetic alterations remains poorly constrained.
Qiang Fu   +6 more
wiley   +1 more source

2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics

open access: yesAdvanced Functional Materials, Volume 36, Issue 44, 1 June 2026.
2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit   +5 more
wiley   +1 more source

Current‐Driven Nonreciprocal Response of Nonequilibrium Skyrmions

open access: yesAdvanced Science, Volume 13, Issue 31, 4 June 2026.
A skyrmion holds great promise for spintronic applications owing to its intrinsic topological stability and high mobility under ultra‐low current excitation. Here, by means of in situ electron microscopy, we demonstrate a skyrmion diode effect and the associated current‐driven nonreciprocal skyrmion dynamics in a designed FeGe‐based microdevice.
Xiuzhen Yu   +10 more
wiley   +1 more source

Nonlinear Strain‐Mediated Magnetoelectric Coupling in Sub‐Microscale Ni/BPZT Thin‐Film Devices

open access: yesAdvanced Electronic Materials, Volume 12, Issue 11, 8 June 2026.
Sub‐micrometer Ni/BPZT thin‐film magnetoelectric devices with lateral gates enable localized, low‐voltage strain control of magnetization. By combining anisotropic magnetoresistance, nitrogen‐vacancy magnetometry, multiphysics strain simulations, and micromagnetic modelling, the study quantitatively links ferroelectric strain hysteresis to magnetic ...
Fanfan Meng   +8 more
wiley   +1 more source

Imaging and Linking Spatial Magnetic Nanoparticle Distribution to Microbead Torques Using Soft X‐Ray Laminography

open access: yesAdvanced Physics Research, Volume 5, Issue 6, June 2026.
Nanoscale 3D imaging of superparamagnetic microbeads via soft X‐ray laminography reveals the structural origin of the observed torques in cell movement experiments. These microbeads are found to have an uneven distribution of magnetic magnetite nanoparticles.
Findan Block   +9 more
wiley   +1 more source

k‐Selective Electrical‐to‐Magnon Transduction with Finite‐Element‐Resolved Sub‐Micron Nanoantennas

open access: yesAdvanced Physics Research, Volume 5, Issue 6, June 2026.
We introduce a coupled finite‐element‐finite‐difference framework that links impedance‐matched nanoantenna geometries to propagating spin‐wave dynamics, capturing skin effects, proximity effects, and taper leakage beyond uniform‐current models. Applied to coplanar‐waveguide and stripline nanoantennas on yttrium‐iron‐garnet, the simulations achieve ...
Andreas Höfinger   +11 more
wiley   +1 more source

Spin‐Driven Electrocatalysis for Metal–Sulfur Batteries

open access: yesEcoEnergy, Volume 4, Issue 3, June 2026.
This review presents a comprehensive overview of spin‐driven electrocatalysis for cathodes and anodes in metal–sulfur batteries, covering the fundamental mechanism, regulation strategies, and the related characterization techniques for tracking these variations. The insightful perspectives and future research directions for spin effects in metal–sulfur
Boyang Song   +7 more
wiley   +1 more source

Super‐High Coercivity Sintered NdFeB Magnets Enabled by High‐Rate Dy/Tb Grain Boundary Synergistic Diffusion

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT The surging demand for high‐performance NdFeB magnets has made it essential to achieve ultrahigh coercivity while minimizing the consumption of heavy rare earths. To tackle this challenge, this study proposes a Dy/Tb bilayer grain boundary diffusion strategy and systematically investigates the co‐diffusion behavior of Dy and Tb.
Rui Chang   +7 more
wiley   +1 more source

Discretization Anisotropy in Finite Difference Micromagnetic Simulations [PDF]

open access: yesIEEE Transactions on Magnetics
Finite difference-based micromagnetic simulations are a powerful tool for the computational investigation of magnetic structures. In this article, we demonstrate how the discretization of continuous micromagnetic equations introduces a numerical “discretization anisotropy.” We demonstrate that, in certain scenarios, this anisotropy operates on an ...
Samuel J. R. Holt   +4 more
openaire   +2 more sources

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