Results 41 to 50 of about 1,910 (135)

Energetic Analysis During the Magnetization Reversal Process of a Hollow Fe Nano-Sphere by Micromagnetic Simulations

open access: yesMagnetochemistry
This work presents a detailed micromagnetic analysis of the magnetization reversal process in hollow iron nanospheres with a shell thickness of 16 nm. Using the Ubermag computational framework coupled to the OOMMF, we demonstrate that these nanospheres ...
Mauricio Galvis   +2 more
doaj   +1 more source

Magnonics: Experiment to Prove the Concept

open access: yes, 2005
An experimental scheme for studying spin wave propagation across thin film samples is proposed. An experiment upon a periodically layered nanowire is numerically simulated, while the sample might equally well be a continuous film or an array of elements (
Barman   +26 more
core   +1 more source

Geometrical multilayers: coercivity in magnetic 3-D nanostructures [PDF]

open access: yes, 2007
Electrodeposition of magnetic metals through self-assembly templates from polystyrene spheres is used for fabrication of magnetic nanostructures with 3-D architectures.
A.A. Zhukov   +9 more
core   +1 more source

Optimized Copper Distribution and Enhanced Coercivity in PrO2‐Doped Sm2Co17‐Type Magnets

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT A rational design of Cu distribution is crucial for achieving optimal magnetic properties in Sm2Co17‐type magnets. In this study, nanostructured PrO2 powders were employed to induce Cu redistribution at grain boundaries while preserving the cellular microstructure. The corresponding coercivity (Hcj), remanence (Br), and maximum energy product (
Qi‐Qi Yang   +5 more
wiley   +1 more source

Computing the demagnetizing tensor for finite difference micromagnetic simulations via numerical integration

open access: yes, 2015
In the finite difference method which is commonly used in computational micromagnetics, the demagnetizing field is usually computed as a convolution of the magnetization vector field with the demagnetizing tensor that describes the magnetostatic field of
Chernyshenko, Dmitri, Fangohr, Hans
core   +1 more source

An Ultra‐Sub‐Wavelength Microwave Polarization Switching Antenna for Covert Communication Implemented With Directed Surface Acoustic Waves in an Artificial Multiferroic Magnonic Crystal

open access: yesAdvanced Materials Technologies, Volume 10, Issue 23, December 3, 2025.
A surface acoustic wave (SAW) launched in a two‐dimensional periodic array of magnetostrctive nanomagnets on a piezoelectric substrate excites spin waves in the nanomagnets which radiate electromagnetic waves in space. The polarization of the emitted beam in particular directions and at particular frequencies can be switched between horizontal and ...
Raisa Fabiha   +2 more
wiley   +1 more source

Simulation Studies of Nanomagnet-Based Architecture

open access: yes, 2008
We report a simulation study on interacting ensembles of Co nanomagnets that can perform basic logic operations and propagate logic signals, where the state variable is the magnetization direction.
Behin-Aein B.   +9 more
core   +1 more source

External Control Over Magnon‐Magnon Coupling in a Two‐Dimensional Array of Square‐Shaped Nanomagnets

open access: yesAdvanced Quantum Technologies, Volume 8, Issue 10, October 2025.
Tunable magnon‐magnon coupling is demonstrated in a 2D array of square permalloy nanomagnets using broadband FMR spectroscopy. Coupling strength is externally controlled via bias‐field orientation and microwave power, revealing strong dipolar‐mediated hybridization.
Swapnil Barman   +2 more
wiley   +1 more source

360 degree domain wall generation in the soft layer of magnetic tunnel junctions

open access: yes, 2007
High spatial resolution X-ray photo-emission electron microscopy technique has been used to study the influence of the dipolar coupling taking place between the NiFe and the Co ferromagnetic electrodes of micron sized, elliptical shaped magnetic tunnel ...
D. Lacour   +8 more
core   +3 more sources

Magnetic Steganography Based on Wide‐Field Diamond Quantum Microscopy

open access: yesAdvanced Optical Materials, Volume 13, Issue 24, August 25, 2025.
This document illustrates magnetic steganography. Magnetic graphics, including pixel art and QR codes, are produced using magnetic materials (such as Ni) and obscure behind patterns manufactured using non‐magnetic materials (such as Au), which are unveiled through widefield quantum microscopy. Furthermore, manipulating the electron spin of NV with dual
Jungbae Yoon   +7 more
wiley   +1 more source

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