Results 21 to 30 of about 1,352 (179)

Micromagnetic Simulation of Domain Structure Transition in Ferromagnetic Nanospheres under Zero External Field

open access: yesInternational Journal of Technology, 2021
In this work, we investigated the domain structure transition in ferromagnetic nanospheres at the ground-state conditions under zero external magnetic field by micromagnetic simulation. Four basic ferromagnetic materials, nickel (Ni), permalloy (Py),
Dede Djuhana   +3 more
doaj   +1 more source

Electrical-field and spin-transfer torque effects in CoFeB/MgO-based perpendicular magnetic tunnel junction

open access: yesAIP Advances, 2016
The electric-field (E) dependence of the magnetoresistance (RH) loops for top-pinned perpendicular CoFeB/MgO-based magnetic tunnel junctions (MTJs) in the presence of a spin-transfer torque (STT)-current was measured.
Chikako Yoshida   +7 more
doaj   +1 more source

Manipulating 1-dimensional skyrmion motion by the external magnetic field gradient

open access: yesNew Journal of Physics, 2020
We have investigated an approximated analytic form of the one-dimensional motion of skyrmions accelerated by a gradient of the external magnetic field. We find excellent agreement between the analytical calculations and micromagnetic simulations when the
Jaehun Cho   +9 more
doaj   +1 more source

Micromagnetic simulation of Fe asymmetric nanorings

open access: yesJournal of Magnetism and Magnetic Materials, 2012
During the last decade several methods to control the vortex chirality in nanodots have been proposed. One of them, the introduction of asymmetry in the geometry of the dots, originates interesting effects on the magnetic behavior of the particle.
Palma, J. L.   +4 more
openaire   +5 more sources

Dynamic behavior of skyrmion collision: spiral and breath

open access: yesNew Journal of Physics, 2023
A magnetic skyrmion is a particle-like topological soliton, which is an ideal candidate for developing high-density storage and logic devices due to its nonvolatility and tunability.
Shengbin Shi   +5 more
doaj   +1 more source

Micromagnetic Simulation of Round Ferromagnetic Nanodots with Varying Roughness and Symmetry

open access: yesCondensed Matter, 2021
Magnetic nanodots are of high interest for basic research due to their broad spectrum of possible magnetic states and magnetization reversal processes.
Pia Steinmetz, Andrea Ehrmann
doaj   +1 more source

Fabrication and micromagnetic modeling of barium hexaferrite thin films by RF magnetron sputtering

open access: yesResults in Physics, 2018
The synthesis and characterization of thin M-type barium hexaferrite (BaFe12O19 or BaM) films on silicon are reported. Multilayer in situ technique was employed to anneal the films at 850–900 °C for 10 min.
Alaaedeen R. Abuzir, Saed A. Salman
doaj   +1 more source

Comparative Modeling of Frequency Mixing Measurements of Magnetic Nanoparticles Using Micromagnetic Simulations and Langevin Theory

open access: yesNanomaterials, 2021
Dual frequency magnetic excitation of magnetic nanoparticles (MNP) enables enhanced biosensing applications. This was studied from an experimental and theoretical perspective: nonlinear sum-frequency components of MNP exposed to dual-frequency magnetic ...
Ulrich M. Engelmann   +4 more
doaj   +1 more source

Nmag micromagnetic simulation tool [PDF]

open access: yesProceedings of the International Workshop on Software Engineering for Science, 2016
We review design and development decisions and their impact for the open source code Nmag from a software engineering in computational science point of view. We summarise lessons learned and recommendations for future computational science projects. Key lessons include that encapsulating the simulation functionality in a library of a general purpose ...
Fangohr, Hans   +2 more
openaire   +3 more sources

Micromagnetic Simulations of Chaotic Ferromagnetic Nanofiber Networks [PDF]

open access: yesNanomaterials, 2020
Electrospinning can be used to create nanofibers with diameters of typically a few tens to a few hundred nanometers. While pure polymers are often electrospun, it is also possible to use polymer blends or to include nanoparticles. In this way, e.g., magnetic nanofiber networks can be created with a certain diameter distribution, random fiber ...
Tomasz Blachowicz   +2 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy